Home / 784,714.89-1,174,013.06-687,883.43

Finding the Fourth Proportional to 784,714.89, 1,174,013.06 and 687,883.43

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Solution

The fourth proportional to 784,714.89, 1,174,013.06 and 687,883.43 is: 1,029,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,714.89 : 1,174,013.06 = 687,883.43 : x
  2. Step 2: Convert to fraction form
    784,714.89/1,174,013.06 = 687,883.43/x
  3. Step 3: Cross multiply
    784,714.89x = 1,174,013.06 × 687,883.43
  4. Step 4: Simplify right side
    784,714.89x = 807,584,121,268.11
  5. Step 5: Solve for x
    x = 807,584,121,268.11/784,714.89
  6. Step 6: Final answer
    x = 1,029,143.36

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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.