Home / 712,974.80-1,069,462.20-607,998.80

Finding the Fourth Proportional to 712,974.80, 1,069,462.20 and 607,998.80

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Solution

The fourth proportional to 712,974.80, 1,069,462.20 and 607,998.80 is: 911,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,974.80 : 1,069,462.20 = 607,998.80 : x
  2. Step 2: Convert to fraction form
    712,974.80/1,069,462.20 = 607,998.80/x
  3. Step 3: Cross multiply
    712,974.80x = 1,069,462.20 × 607,998.80
  4. Step 4: Simplify right side
    712,974.80x = 650,231,734,245.36
  5. Step 5: Solve for x
    x = 650,231,734,245.36/712,974.80
  6. Step 6: Final answer
    x = 911,998.20

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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.