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Finding the Fourth Proportional to 670,951.80, 1,006,427.70 and 665,046.90

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Solution

The fourth proportional to 670,951.80, 1,006,427.70 and 665,046.90 is: 997,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,951.80 : 1,006,427.70 = 665,046.90 : x
  2. Step 2: Convert to fraction form
    670,951.80/1,006,427.70 = 665,046.90/x
  3. Step 3: Cross multiply
    670,951.80x = 1,006,427.70 × 665,046.90
  4. Step 4: Simplify right side
    670,951.80x = 669,321,621,959.13
  5. Step 5: Solve for x
    x = 669,321,621,959.13/670,951.80
  6. Step 6: Final answer
    x = 997,570.35

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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.