Home / 724,829.70-1,087,244.55-612,855.30

Finding the Fourth Proportional to 724,829.70, 1,087,244.55 and 612,855.30

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Solution

The fourth proportional to 724,829.70, 1,087,244.55 and 612,855.30 is: 919,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,829.70 : 1,087,244.55 = 612,855.30 : x
  2. Step 2: Convert to fraction form
    724,829.70/1,087,244.55 = 612,855.30/x
  3. Step 3: Cross multiply
    724,829.70x = 1,087,244.55 × 612,855.30
  4. Step 4: Simplify right side
    724,829.70x = 666,323,584,863.62
  5. Step 5: Solve for x
    x = 666,323,584,863.62/724,829.70
  6. Step 6: Final answer
    x = 919,282.95

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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.