Home / 807,633.30-1,209,117.15-492,705.30

Finding the Fourth Proportional to 807,633.30, 1,209,117.15 and 492,705.30

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Solution

The fourth proportional to 807,633.30, 1,209,117.15 and 492,705.30 is: 737,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,633.30 : 1,209,117.15 = 492,705.30 : x
  2. Step 2: Convert to fraction form
    807,633.30/1,209,117.15 = 492,705.30/x
  3. Step 3: Cross multiply
    807,633.30x = 1,209,117.15 × 492,705.30
  4. Step 4: Simplify right side
    807,633.30x = 595,738,428,125.90
  5. Step 5: Solve for x
    x = 595,738,428,125.90/807,633.30
  6. Step 6: Final answer
    x = 737,634.80

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Double scale
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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.