Home / 840,553.82-1,159,917-478,065.86

Finding the Fourth Proportional to 840,553.82, 1,159,917 and 478,065.86

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Solution

The fourth proportional to 840,553.82, 1,159,917 and 478,065.86 is: 659,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,553.82 : 1,159,917 = 478,065.86 : x
  2. Step 2: Convert to fraction form
    840,553.82/1,159,917 = 478,065.86/x
  3. Step 3: Cross multiply
    840,553.82x = 1,159,917 × 478,065.86
  4. Step 4: Simplify right side
    840,553.82x = 554,516,718,133.62
  5. Step 5: Solve for x
    x = 554,516,718,133.62/840,553.82
  6. Step 6: Final answer
    x = 659,704.00

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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.