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Finding the Fourth Proportional to 630,854.04, 870,545.28 and 344,318.52

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Solution

The fourth proportional to 630,854.04, 870,545.28 and 344,318.52 is: 475,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,854.04 : 870,545.28 = 344,318.52 : x
  2. Step 2: Convert to fraction form
    630,854.04/870,545.28 = 344,318.52/x
  3. Step 3: Cross multiply
    630,854.04x = 870,545.28 × 344,318.52
  4. Step 4: Simplify right side
    630,854.04x = 299,744,862,402.59
  5. Step 5: Solve for x
    x = 299,744,862,402.59/630,854.04
  6. Step 6: Final answer
    x = 475,141.39

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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.