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Finding the Fourth Proportional to 488,956.80, 733,435.20 and 370,858.80

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Solution

The fourth proportional to 488,956.80, 733,435.20 and 370,858.80 is: 556,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,956.80 : 733,435.20 = 370,858.80 : x
  2. Step 2: Convert to fraction form
    488,956.80/733,435.20 = 370,858.80/x
  3. Step 3: Cross multiply
    488,956.80x = 733,435.20 × 370,858.80
  4. Step 4: Simplify right side
    488,956.80x = 272,000,898,149.76
  5. Step 5: Solve for x
    x = 272,000,898,149.76/488,956.80
  6. Step 6: Final answer
    x = 556,288.20

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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.