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Finding the Fourth Proportional to 535,475.20, 803,212.80 and 527,180.80

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Solution

The fourth proportional to 535,475.20, 803,212.80 and 527,180.80 is: 790,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,475.20 : 803,212.80 = 527,180.80 : x
  2. Step 2: Convert to fraction form
    535,475.20/803,212.80 = 527,180.80/x
  3. Step 3: Cross multiply
    535,475.20x = 803,212.80 × 527,180.80
  4. Step 4: Simplify right side
    535,475.20x = 423,438,366,474.24
  5. Step 5: Solve for x
    x = 423,438,366,474.24/535,475.20
  6. Step 6: Final answer
    x = 790,771.20

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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.