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Finding the Fourth Proportional to 498,779.48, 748,402.50 and 288,594.20

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Solution

The fourth proportional to 498,779.48, 748,402.50 and 288,594.20 is: 433,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,779.48 : 748,402.50 = 288,594.20 : x
  2. Step 2: Convert to fraction form
    498,779.48/748,402.50 = 288,594.20/x
  3. Step 3: Cross multiply
    498,779.48x = 748,402.50 × 288,594.20
  4. Step 4: Simplify right side
    498,779.48x = 215,984,620,765.50
  5. Step 5: Solve for x
    x = 215,984,620,765.50/498,779.48
  6. Step 6: Final answer
    x = 433,026.28

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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.