Home / 1,229,979.42-1,844,981.52-431,280.20

Finding the Fourth Proportional to 1,229,979.42, 1,844,981.52 and 431,280.20

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Solution

The fourth proportional to 1,229,979.42, 1,844,981.52 and 431,280.20 is: 646,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,979.42 : 1,844,981.52 = 431,280.20 : x
  2. Step 2: Convert to fraction form
    1,229,979.42/1,844,981.52 = 431,280.20/x
  3. Step 3: Cross multiply
    1,229,979.42x = 1,844,981.52 × 431,280.20
  4. Step 4: Simplify right side
    1,229,979.42x = 795,703,998,941.90
  5. Step 5: Solve for x
    x = 795,703,998,941.90/1,229,979.42
  6. Step 6: Final answer
    x = 646,924.64

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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.