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Finding the Fourth Proportional to 702,971.71, 970,101.48 and 380,682.16

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Solution

The fourth proportional to 702,971.71, 970,101.48 and 380,682.16 is: 525,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,971.71 : 970,101.48 = 380,682.16 : x
  2. Step 2: Convert to fraction form
    702,971.71/970,101.48 = 380,682.16/x
  3. Step 3: Cross multiply
    702,971.71x = 970,101.48 × 380,682.16
  4. Step 4: Simplify right side
    702,971.71x = 369,300,326,825.60
  5. Step 5: Solve for x
    x = 369,300,326,825.60/702,971.71
  6. Step 6: Final answer
    x = 525,341.66

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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.