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Finding the Fourth Proportional to 647,884.10, 971,534.55 and 292,715.30

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Solution

The fourth proportional to 647,884.10, 971,534.55 and 292,715.30 is: 438,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,884.10 : 971,534.55 = 292,715.30 : x
  2. Step 2: Convert to fraction form
    647,884.10/971,534.55 = 292,715.30/x
  3. Step 3: Cross multiply
    647,884.10x = 971,534.55 × 292,715.30
  4. Step 4: Simplify right side
    647,884.10x = 284,383,027,263.62
  5. Step 5: Solve for x
    x = 284,383,027,263.62/647,884.10
  6. Step 6: Final answer
    x = 438,941.20

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1.5x scale

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.