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Finding the Fourth Proportional to 971,998.80, 1,457,998.20 and 493,701.90

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Solution

The fourth proportional to 971,998.80, 1,457,998.20 and 493,701.90 is: 740,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,998.80 : 1,457,998.20 = 493,701.90 : x
  2. Step 2: Convert to fraction form
    971,998.80/1,457,998.20 = 493,701.90/x
  3. Step 3: Cross multiply
    971,998.80x = 1,457,998.20 × 493,701.90
  4. Step 4: Simplify right side
    971,998.80x = 719,816,481,536.58
  5. Step 5: Solve for x
    x = 719,816,481,536.58/971,998.80
  6. Step 6: Final answer
    x = 740,552.85

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Similar ratio
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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.