Home / 918,479.17-1,377,744.68-253,631.17

Finding the Fourth Proportional to 918,479.17, 1,377,744.68 and 253,631.17

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Solution

The fourth proportional to 918,479.17, 1,377,744.68 and 253,631.17 is: 380,453.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,479.17 : 1,377,744.68 = 253,631.17 : x
  2. Step 2: Convert to fraction form
    918,479.17/1,377,744.68 = 253,631.17/x
  3. Step 3: Cross multiply
    918,479.17x = 1,377,744.68 × 253,631.17
  4. Step 4: Simplify right side
    918,479.17x = 349,438,995,149.68
  5. Step 5: Solve for x
    x = 349,438,995,149.68/918,479.17
  6. Step 6: Final answer
    x = 380,453.91

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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.