Home / 1,313,785.40-1,812,713.65-740,714.85

Finding the Fourth Proportional to 1,313,785.40, 1,812,713.65 and 740,714.85

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Solution

The fourth proportional to 1,313,785.40, 1,812,713.65 and 740,714.85 is: 1,022,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,785.40 : 1,812,713.65 = 740,714.85 : x
  2. Step 2: Convert to fraction form
    1,313,785.40/1,812,713.65 = 740,714.85/x
  3. Step 3: Cross multiply
    1,313,785.40x = 1,812,713.65 × 740,714.85
  4. Step 4: Simplify right side
    1,313,785.40x = 1,342,703,917,500.92
  5. Step 5: Solve for x
    x = 1,342,703,917,500.92/1,313,785.40
  6. Step 6: Final answer
    x = 1,022,011.60

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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.