Home / 575,721.50-861,785.19-424,089.54

Finding the Fourth Proportional to 575,721.50, 861,785.19 and 424,089.54

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Solution

The fourth proportional to 575,721.50, 861,785.19 and 424,089.54 is: 634,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,721.50 : 861,785.19 = 424,089.54 : x
  2. Step 2: Convert to fraction form
    575,721.50/861,785.19 = 424,089.54/x
  3. Step 3: Cross multiply
    575,721.50x = 861,785.19 × 424,089.54
  4. Step 4: Simplify right side
    575,721.50x = 365,474,084,805.91
  5. Step 5: Solve for x
    x = 365,474,084,805.91/575,721.50
  6. Step 6: Final answer
    x = 634,810.56

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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.