Home / 918,472.42-1,377,734.55-253,624.42

Finding the Fourth Proportional to 918,472.42, 1,377,734.55 and 253,624.42

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Solution

The fourth proportional to 918,472.42, 1,377,734.55 and 253,624.42 is: 380,443.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,472.42 : 1,377,734.55 = 253,624.42 : x
  2. Step 2: Convert to fraction form
    918,472.42/1,377,734.55 = 253,624.42/x
  3. Step 3: Cross multiply
    918,472.42x = 1,377,734.55 × 253,624.42
  4. Step 4: Simplify right side
    918,472.42x = 349,427,126,157.71
  5. Step 5: Solve for x
    x = 349,427,126,157.71/918,472.42
  6. Step 6: Final answer
    x = 380,443.79

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Double scale
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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.