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Finding the Fourth Proportional to 576,295.20, 864,434.70 and 260,751.60

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Solution

The fourth proportional to 576,295.20, 864,434.70 and 260,751.60 is: 391,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,295.20 : 864,434.70 = 260,751.60 : x
  2. Step 2: Convert to fraction form
    576,295.20/864,434.70 = 260,751.60/x
  3. Step 3: Cross multiply
    576,295.20x = 864,434.70 × 260,751.60
  4. Step 4: Simplify right side
    576,295.20x = 225,402,731,120.52
  5. Step 5: Solve for x
    x = 225,402,731,120.52/576,295.20
  6. Step 6: Final answer
    x = 391,123.74

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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.