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Finding the Fourth Proportional to 710,417.57, 980,377.17 and 404,480.57

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Solution

The fourth proportional to 710,417.57, 980,377.17 and 404,480.57 is: 558,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,417.57 : 980,377.17 = 404,480.57 : x
  2. Step 2: Convert to fraction form
    710,417.57/980,377.17 = 404,480.57/x
  3. Step 3: Cross multiply
    710,417.57x = 980,377.17 × 404,480.57
  4. Step 4: Simplify right side
    710,417.57x = 396,543,516,536.59
  5. Step 5: Solve for x
    x = 396,543,516,536.59/710,417.57
  6. Step 6: Final answer
    x = 558,183.71

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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.