Home / 918,633.92-1,377,976.80-253,785.92

Finding the Fourth Proportional to 918,633.92, 1,377,976.80 and 253,785.92

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Solution

The fourth proportional to 918,633.92, 1,377,976.80 and 253,785.92 is: 380,686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,633.92 : 1,377,976.80 = 253,785.92 : x
  2. Step 2: Convert to fraction form
    918,633.92/1,377,976.80 = 253,785.92/x
  3. Step 3: Cross multiply
    918,633.92x = 1,377,976.80 × 253,785.92
  4. Step 4: Simplify right side
    918,633.92x = 349,711,109,926.66
  5. Step 5: Solve for x
    x = 349,711,109,926.66/918,633.92
  6. Step 6: Final answer
    x = 380,686.04

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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.