Home / 761,165.38-1,141,908.39-287,840.26

Finding the Fourth Proportional to 761,165.38, 1,141,908.39 and 287,840.26

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Solution

The fourth proportional to 761,165.38, 1,141,908.39 and 287,840.26 is: 431,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,165.38 : 1,141,908.39 = 287,840.26 : x
  2. Step 2: Convert to fraction form
    761,165.38/1,141,908.39 = 287,840.26/x
  3. Step 3: Cross multiply
    761,165.38x = 1,141,908.39 × 287,840.26
  4. Step 4: Simplify right side
    761,165.38x = 328,687,207,873.78
  5. Step 5: Solve for x
    x = 328,687,207,873.78/761,165.38
  6. Step 6: Final answer
    x = 431,821.02

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1.5x scale

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.