Home / 384,748.64-577,123.10-100,438.38

Finding the Fourth Proportional to 384,748.64, 577,123.10 and 100,438.38

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Solution

The fourth proportional to 384,748.64, 577,123.10 and 100,438.38 is: 150,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,748.64 : 577,123.10 = 100,438.38 : x
  2. Step 2: Convert to fraction form
    384,748.64/577,123.10 = 100,438.38/x
  3. Step 3: Cross multiply
    384,748.64x = 577,123.10 × 100,438.38
  4. Step 4: Simplify right side
    384,748.64x = 57,965,309,224.58
  5. Step 5: Solve for x
    x = 57,965,309,224.58/384,748.64
  6. Step 6: Final answer
    x = 150,657.61

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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.