Home / 929,472.71-1,393,249.92-390,042.30

Finding the Fourth Proportional to 929,472.71, 1,393,249.92 and 390,042.30

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Solution

The fourth proportional to 929,472.71, 1,393,249.92 and 390,042.30 is: 584,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,472.71 : 1,393,249.92 = 390,042.30 : x
  2. Step 2: Convert to fraction form
    929,472.71/1,393,249.92 = 390,042.30/x
  3. Step 3: Cross multiply
    929,472.71x = 1,393,249.92 × 390,042.30
  4. Step 4: Simplify right side
    929,472.71x = 543,426,407,033.65
  5. Step 5: Solve for x
    x = 543,426,407,033.65/929,472.71
  6. Step 6: Final answer
    x = 584,660.96

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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.