Home / 918,230.80-1,377,346.20-558,979.60

Finding the Fourth Proportional to 918,230.80, 1,377,346.20 and 558,979.60

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Solution

The fourth proportional to 918,230.80, 1,377,346.20 and 558,979.60 is: 838,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,230.80 : 1,377,346.20 = 558,979.60 : x
  2. Step 2: Convert to fraction form
    918,230.80/1,377,346.20 = 558,979.60/x
  3. Step 3: Cross multiply
    918,230.80x = 1,377,346.20 × 558,979.60
  4. Step 4: Simplify right side
    918,230.80x = 769,908,427,937.52
  5. Step 5: Solve for x
    x = 769,908,427,937.52/918,230.80
  6. Step 6: Final answer
    x = 838,469.40

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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.