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Finding the Fourth Proportional to 551,425.20, 826,700.40 and 302,107.20

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Solution

The fourth proportional to 551,425.20, 826,700.40 and 302,107.20 is: 452,921.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,425.20 : 826,700.40 = 302,107.20 : x
  2. Step 2: Convert to fraction form
    551,425.20/826,700.40 = 302,107.20/x
  3. Step 3: Cross multiply
    551,425.20x = 826,700.40 × 302,107.20
  4. Step 4: Simplify right side
    551,425.20x = 249,752,143,082.88
  5. Step 5: Solve for x
    x = 249,752,143,082.88/551,425.20
  6. Step 6: Final answer
    x = 452,921.16

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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.