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Finding the Fourth Proportional to 604,487.90, 905,419.65 and 499,511.90

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Solution

The fourth proportional to 604,487.90, 905,419.65 and 499,511.90 is: 748,183.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,487.90 : 905,419.65 = 499,511.90 : x
  2. Step 2: Convert to fraction form
    604,487.90/905,419.65 = 499,511.90/x
  3. Step 3: Cross multiply
    604,487.90x = 905,419.65 × 499,511.90
  4. Step 4: Simplify right side
    604,487.90x = 452,267,889,668.84
  5. Step 5: Solve for x
    x = 452,267,889,668.84/604,487.90
  6. Step 6: Final answer
    x = 748,183.53

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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.