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Finding the Fourth Proportional to 663,726.64, 995,189.64 and 264,429.04

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Solution

The fourth proportional to 663,726.64, 995,189.64 and 264,429.04 is: 396,484.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,726.64 : 995,189.64 = 264,429.04 : x
  2. Step 2: Convert to fraction form
    663,726.64/995,189.64 = 264,429.04/x
  3. Step 3: Cross multiply
    663,726.64x = 995,189.64 × 264,429.04
  4. Step 4: Simplify right side
    663,726.64x = 263,157,041,123.15
  5. Step 5: Solve for x
    x = 263,157,041,123.15/663,726.64
  6. Step 6: Final answer
    x = 396,484.07

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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.