Home / 918,007.70-1,377,011.55-412,373.30

Finding the Fourth Proportional to 918,007.70, 1,377,011.55 and 412,373.30

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Solution

The fourth proportional to 918,007.70, 1,377,011.55 and 412,373.30 is: 618,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,007.70 : 1,377,011.55 = 412,373.30 : x
  2. Step 2: Convert to fraction form
    918,007.70/1,377,011.55 = 412,373.30/x
  3. Step 3: Cross multiply
    918,007.70x = 1,377,011.55 × 412,373.30
  4. Step 4: Simplify right side
    918,007.70x = 567,842,797,011.62
  5. Step 5: Solve for x
    x = 567,842,797,011.62/918,007.70
  6. Step 6: Final answer
    x = 618,559.95

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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.