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Finding the Fourth Proportional to 427,037.64, 588,930.12 and 354,325.38

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Solution

The fourth proportional to 427,037.64, 588,930.12 and 354,325.38 is: 488,652.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,037.64 : 588,930.12 = 354,325.38 : x
  2. Step 2: Convert to fraction form
    427,037.64/588,930.12 = 354,325.38/x
  3. Step 3: Cross multiply
    427,037.64x = 588,930.12 × 354,325.38
  4. Step 4: Simplify right side
    427,037.64x = 208,672,888,562.45
  5. Step 5: Solve for x
    x = 208,672,888,562.45/427,037.64
  6. Step 6: Final answer
    x = 488,652.21

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1.5x scale

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.