Home / 840,818.46-1,160,227.35-478,288.38

Finding the Fourth Proportional to 840,818.46, 1,160,227.35 and 478,288.38

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Solution

The fourth proportional to 840,818.46, 1,160,227.35 and 478,288.38 is: 659,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,818.46 : 1,160,227.35 = 478,288.38 : x
  2. Step 2: Convert to fraction form
    840,818.46/1,160,227.35 = 478,288.38/x
  3. Step 3: Cross multiply
    840,818.46x = 1,160,227.35 × 478,288.38
  4. Step 4: Simplify right side
    840,818.46x = 554,923,259,663.19
  5. Step 5: Solve for x
    x = 554,923,259,663.19/840,818.46
  6. Step 6: Final answer
    x = 659,979.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.