Home / 804,629.10-1,206,943.65-431,381.10

Finding the Fourth Proportional to 804,629.10, 1,206,943.65 and 431,381.10

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Solution

The fourth proportional to 804,629.10, 1,206,943.65 and 431,381.10 is: 647,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,629.10 : 1,206,943.65 = 431,381.10 : x
  2. Step 2: Convert to fraction form
    804,629.10/1,206,943.65 = 431,381.10/x
  3. Step 3: Cross multiply
    804,629.10x = 1,206,943.65 × 431,381.10
  4. Step 4: Simplify right side
    804,629.10x = 520,652,679,375.02
  5. Step 5: Solve for x
    x = 520,652,679,375.02/804,629.10
  6. Step 6: Final answer
    x = 647,071.65

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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.