Home / 515,061.75-772,805.25-278,125.41

Finding the Fourth Proportional to 515,061.75, 772,805.25 and 278,125.41

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Solution

The fourth proportional to 515,061.75, 772,805.25 and 278,125.41 is: 417,302.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,061.75 : 772,805.25 = 278,125.41 : x
  2. Step 2: Convert to fraction form
    515,061.75/772,805.25 = 278,125.41/x
  3. Step 3: Cross multiply
    515,061.75x = 772,805.25 × 278,125.41
  4. Step 4: Simplify right side
    515,061.75x = 214,936,777,006.40
  5. Step 5: Solve for x
    x = 214,936,777,006.40/515,061.75
  6. Step 6: Final answer
    x = 417,302.93

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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.