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Finding the Fourth Proportional to 637,468.80, 879,856.32 and 365,531.76

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Solution

The fourth proportional to 637,468.80, 879,856.32 and 365,531.76 is: 504,519.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,468.80 : 879,856.32 = 365,531.76 : x
  2. Step 2: Convert to fraction form
    637,468.80/879,856.32 = 365,531.76/x
  3. Step 3: Cross multiply
    637,468.80x = 879,856.32 × 365,531.76
  4. Step 4: Simplify right side
    637,468.80x = 321,615,429,196.72
  5. Step 5: Solve for x
    x = 321,615,429,196.72/637,468.80
  6. Step 6: Final answer
    x = 504,519.48

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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.