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Finding the Fourth Proportional to 670,602.70, 1,005,904.05 and 197,335.90

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Solution

The fourth proportional to 670,602.70, 1,005,904.05 and 197,335.90 is: 296,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,602.70 : 1,005,904.05 = 197,335.90 : x
  2. Step 2: Convert to fraction form
    670,602.70/1,005,904.05 = 197,335.90/x
  3. Step 3: Cross multiply
    670,602.70x = 1,005,904.05 × 197,335.90
  4. Step 4: Simplify right side
    670,602.70x = 198,500,981,020.40
  5. Step 5: Solve for x
    x = 198,500,981,020.40/670,602.70
  6. Step 6: Final answer
    x = 296,003.85

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Double scale
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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.