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Finding the Fourth Proportional to 425,991.92, 587,897.88 and 247,143.92

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Solution

The fourth proportional to 425,991.92, 587,897.88 and 247,143.92 is: 341,075.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,991.92 : 587,897.88 = 247,143.92 : x
  2. Step 2: Convert to fraction form
    425,991.92/587,897.88 = 247,143.92/x
  3. Step 3: Cross multiply
    425,991.92x = 587,897.88 × 247,143.92
  4. Step 4: Simplify right side
    425,991.92x = 145,295,386,622.89
  5. Step 5: Solve for x
    x = 145,295,386,622.89/425,991.92
  6. Step 6: Final answer
    x = 341,075.45

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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.