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Finding the Fourth Proportional to 488,572.68, 731,776.30 and 375,420

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Solution

The fourth proportional to 488,572.68, 731,776.30 and 375,420 is: 562,298.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,572.68 : 731,776.30 = 375,420 : x
  2. Step 2: Convert to fraction form
    488,572.68/731,776.30 = 375,420/x
  3. Step 3: Cross multiply
    488,572.68x = 731,776.30 × 375,420
  4. Step 4: Simplify right side
    488,572.68x = 274,723,458,546.00
  5. Step 5: Solve for x
    x = 274,723,458,546.00/488,572.68
  6. Step 6: Final answer
    x = 562,298.04

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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.