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Finding the Fourth Proportional to 653,539.65, 980,475.80 and 383,895.80

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Solution

The fourth proportional to 653,539.65, 980,475.80 and 383,895.80 is: 575,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,539.65 : 980,475.80 = 383,895.80 : x
  2. Step 2: Convert to fraction form
    653,539.65/980,475.80 = 383,895.80/x
  3. Step 3: Cross multiply
    653,539.65x = 980,475.80 × 383,895.80
  4. Step 4: Simplify right side
    653,539.65x = 376,400,546,691.01
  5. Step 5: Solve for x
    x = 376,400,546,691.01/653,539.65
  6. Step 6: Final answer
    x = 575,941.41

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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.