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Finding the Fourth Proportional to 702,972.07, 970,101.98 and 380,682.52

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Solution

The fourth proportional to 702,972.07, 970,101.98 and 380,682.52 is: 525,342.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,972.07 : 970,101.98 = 380,682.52 : x
  2. Step 2: Convert to fraction form
    702,972.07/970,101.98 = 380,682.52/x
  3. Step 3: Cross multiply
    702,972.07x = 970,101.98 × 380,682.52
  4. Step 4: Simplify right side
    702,972.07x = 369,300,866,403.39
  5. Step 5: Solve for x
    x = 369,300,866,403.39/702,972.07
  6. Step 6: Final answer
    x = 525,342.16

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Double scale
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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.