Home / 739,497.90-1,020,508.29-399,966.42

Finding the Fourth Proportional to 739,497.90, 1,020,508.29 and 399,966.42

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Solution

The fourth proportional to 739,497.90, 1,020,508.29 and 399,966.42 is: 551,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,497.90 : 1,020,508.29 = 399,966.42 : x
  2. Step 2: Convert to fraction form
    739,497.90/1,020,508.29 = 399,966.42/x
  3. Step 3: Cross multiply
    739,497.90x = 1,020,508.29 × 399,966.42
  4. Step 4: Simplify right side
    739,497.90x = 408,169,047,331.62
  5. Step 5: Solve for x
    x = 408,169,047,331.62/739,497.90
  6. Step 6: Final answer
    x = 551,954.30

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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.