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Finding the Fourth Proportional to 702,972.02, 970,099.64 and 380,682.12

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Solution

The fourth proportional to 702,972.02, 970,099.64 and 380,682.12 is: 525,340.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,972.02 : 970,099.64 = 380,682.12 : x
  2. Step 2: Convert to fraction form
    702,972.02/970,099.64 = 380,682.12/x
  3. Step 3: Cross multiply
    702,972.02x = 970,099.64 × 380,682.12
  4. Step 4: Simplify right side
    702,972.02x = 369,299,587,566.44
  5. Step 5: Solve for x
    x = 369,299,587,566.44/702,972.02
  6. Step 6: Final answer
    x = 525,340.38

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Half scale
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Double scale
Find fourth proportional to 702,973.02, 970,101.02 and 380,683.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.