Home / 724,509.74-1,086,768.36-424,780.13

Finding the Fourth Proportional to 724,509.74, 1,086,768.36 and 424,780.13

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Solution

The fourth proportional to 724,509.74, 1,086,768.36 and 424,780.13 is: 637,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,509.74 : 1,086,768.36 = 424,780.13 : x
  2. Step 2: Convert to fraction form
    724,509.74/1,086,768.36 = 424,780.13/x
  3. Step 3: Cross multiply
    724,509.74x = 1,086,768.36 × 424,780.13
  4. Step 4: Simplify right side
    724,509.74x = 461,637,607,957.61
  5. Step 5: Solve for x
    x = 461,637,607,957.61/724,509.74
  6. Step 6: Final answer
    x = 637,172.40

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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.