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Finding the Fourth Proportional to 710,680.29, 980,738.91 and 404,785.17

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Solution

The fourth proportional to 710,680.29, 980,738.91 and 404,785.17 is: 558,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,680.29 : 980,738.91 = 404,785.17 : x
  2. Step 2: Convert to fraction form
    710,680.29/980,738.91 = 404,785.17/x
  3. Step 3: Cross multiply
    710,680.29x = 980,738.91 × 404,785.17
  4. Step 4: Simplify right side
    710,680.29x = 396,988,566,409.97
  5. Step 5: Solve for x
    x = 396,988,566,409.97/710,680.29
  6. Step 6: Final answer
    x = 558,603.60

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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.