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Finding the Fourth Proportional to 555,247.80, 832,871.70 and 413,530.20

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Solution

The fourth proportional to 555,247.80, 832,871.70 and 413,530.20 is: 620,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,247.80 : 832,871.70 = 413,530.20 : x
  2. Step 2: Convert to fraction form
    555,247.80/832,871.70 = 413,530.20/x
  3. Step 3: Cross multiply
    555,247.80x = 832,871.70 × 413,530.20
  4. Step 4: Simplify right side
    555,247.80x = 344,417,600,675.34
  5. Step 5: Solve for x
    x = 344,417,600,675.34/555,247.80
  6. Step 6: Final answer
    x = 620,295.30

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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.