Home / 1,381,785.62-2,072,678.42-539,746.88

Finding the Fourth Proportional to 1,381,785.62, 2,072,678.42 and 539,746.88

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Solution

The fourth proportional to 1,381,785.62, 2,072,678.42 and 539,746.88 is: 809,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,785.62 : 2,072,678.42 = 539,746.88 : x
  2. Step 2: Convert to fraction form
    1,381,785.62/2,072,678.42 = 539,746.88/x
  3. Step 3: Cross multiply
    1,381,785.62x = 2,072,678.42 × 539,746.88
  4. Step 4: Simplify right side
    1,381,785.62x = 1,118,721,701,424.30
  5. Step 5: Solve for x
    x = 1,118,721,701,424.30/1,381,785.62
  6. Step 6: Final answer
    x = 809,620.31

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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.