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Finding the Fourth Proportional to 493,984.80, 681,699.70 and 267,630.30

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Solution

The fourth proportional to 493,984.80, 681,699.70 and 267,630.30 is: 369,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,984.80 : 681,699.70 = 267,630.30 : x
  2. Step 2: Convert to fraction form
    493,984.80/681,699.70 = 267,630.30/x
  3. Step 3: Cross multiply
    493,984.80x = 681,699.70 × 267,630.30
  4. Step 4: Simplify right side
    493,984.80x = 182,443,495,220.91
  5. Step 5: Solve for x
    x = 182,443,495,220.91/493,984.80
  6. Step 6: Final answer
    x = 369,330.18

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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.