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Finding the Fourth Proportional to 498,003.40, 747,782.70 and 288,051.40

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Solution

The fourth proportional to 498,003.40, 747,782.70 and 288,051.40 is: 432,526.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,003.40 : 747,782.70 = 288,051.40 : x
  2. Step 2: Convert to fraction form
    498,003.40/747,782.70 = 288,051.40/x
  3. Step 3: Cross multiply
    498,003.40x = 747,782.70 × 288,051.40
  4. Step 4: Simplify right side
    498,003.40x = 215,399,853,630.78
  5. Step 5: Solve for x
    x = 215,399,853,630.78/498,003.40
  6. Step 6: Final answer
    x = 432,526.87

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1.5x scale

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.