Home / 870,927.10-1,306,472.82-338,488.90

Finding the Fourth Proportional to 870,927.10, 1,306,472.82 and 338,488.90

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Solution

The fourth proportional to 870,927.10, 1,306,472.82 and 338,488.90 is: 507,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,927.10 : 1,306,472.82 = 338,488.90 : x
  2. Step 2: Convert to fraction form
    870,927.10/1,306,472.82 = 338,488.90/x
  3. Step 3: Cross multiply
    870,927.10x = 1,306,472.82 × 338,488.90
  4. Step 4: Simplify right side
    870,927.10x = 442,226,547,721.70
  5. Step 5: Solve for x
    x = 442,226,547,721.70/870,927.10
  6. Step 6: Final answer
    x = 507,765.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.