Home / 739,461.28-1,020,456.52-399,929.52

Finding the Fourth Proportional to 739,461.28, 1,020,456.52 and 399,929.52

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Solution

The fourth proportional to 739,461.28, 1,020,456.52 and 399,929.52 is: 551,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,461.28 : 1,020,456.52 = 399,929.52 : x
  2. Step 2: Convert to fraction form
    739,461.28/1,020,456.52 = 399,929.52/x
  3. Step 3: Cross multiply
    739,461.28x = 1,020,456.52 × 399,929.52
  4. Step 4: Simplify right side
    739,461.28x = 408,110,686,224.47
  5. Step 5: Solve for x
    x = 408,110,686,224.47/739,461.28
  6. Step 6: Final answer
    x = 551,902.71

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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.