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Finding the Fourth Proportional to 425,251.20, 637,876.80 and 284,246.40

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Solution

The fourth proportional to 425,251.20, 637,876.80 and 284,246.40 is: 426,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,251.20 : 637,876.80 = 284,246.40 : x
  2. Step 2: Convert to fraction form
    425,251.20/637,876.80 = 284,246.40/x
  3. Step 3: Cross multiply
    425,251.20x = 637,876.80 × 284,246.40
  4. Step 4: Simplify right side
    425,251.20x = 181,314,184,043.52
  5. Step 5: Solve for x
    x = 181,314,184,043.52/425,251.20
  6. Step 6: Final answer
    x = 426,369.60

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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.