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Finding the Fourth Proportional to 553,538.31, 763,891.34 and 327,204.87

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Solution

The fourth proportional to 553,538.31, 763,891.34 and 327,204.87 is: 451,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,538.31 : 763,891.34 = 327,204.87 : x
  2. Step 2: Convert to fraction form
    553,538.31/763,891.34 = 327,204.87/x
  3. Step 3: Cross multiply
    553,538.31x = 763,891.34 × 327,204.87
  4. Step 4: Simplify right side
    553,538.31x = 249,948,964,962.80
  5. Step 5: Solve for x
    x = 249,948,964,962.80/553,538.31
  6. Step 6: Final answer
    x = 451,547.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.