Home / 578,059.92-865,967.81-425,981.03

Finding the Fourth Proportional to 578,059.92, 865,967.81 and 425,981.03

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Solution

The fourth proportional to 578,059.92, 865,967.81 and 425,981.03 is: 638,144.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,059.92 : 865,967.81 = 425,981.03 : x
  2. Step 2: Convert to fraction form
    578,059.92/865,967.81 = 425,981.03/x
  3. Step 3: Cross multiply
    578,059.92x = 865,967.81 × 425,981.03
  4. Step 4: Simplify right side
    578,059.92x = 368,885,853,190.90
  5. Step 5: Solve for x
    x = 368,885,853,190.90/578,059.92
  6. Step 6: Final answer
    x = 638,144.66

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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.