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Finding the Fourth Proportional to 576,390.88, 864,567.72 and 260,847.76

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Solution

The fourth proportional to 576,390.88, 864,567.72 and 260,847.76 is: 391,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,390.88 : 864,567.72 = 260,847.76 : x
  2. Step 2: Convert to fraction form
    576,390.88/864,567.72 = 260,847.76/x
  3. Step 3: Cross multiply
    576,390.88x = 864,567.72 × 260,847.76
  4. Step 4: Simplify right side
    576,390.88x = 225,520,553,130.31
  5. Step 5: Solve for x
    x = 225,520,553,130.31/576,390.88
  6. Step 6: Final answer
    x = 391,263.22

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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.