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Finding the Fourth Proportional to 537,189.20, 804,811.80 and 425,603.60

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Solution

The fourth proportional to 537,189.20, 804,811.80 and 425,603.60 is: 637,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,189.20 : 804,811.80 = 425,603.60 : x
  2. Step 2: Convert to fraction form
    537,189.20/804,811.80 = 425,603.60/x
  3. Step 3: Cross multiply
    537,189.20x = 804,811.80 × 425,603.60
  4. Step 4: Simplify right side
    537,189.20x = 342,530,799,402.48
  5. Step 5: Solve for x
    x = 342,530,799,402.48/537,189.20
  6. Step 6: Final answer
    x = 637,635.31

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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.