Home / 778,844.80-1,167,392.40-329,489.20

Finding the Fourth Proportional to 778,844.80, 1,167,392.40 and 329,489.20

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Solution

The fourth proportional to 778,844.80, 1,167,392.40 and 329,489.20 is: 493,863.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,844.80 : 1,167,392.40 = 329,489.20 : x
  2. Step 2: Convert to fraction form
    778,844.80/1,167,392.40 = 329,489.20/x
  3. Step 3: Cross multiply
    778,844.80x = 1,167,392.40 × 329,489.20
  4. Step 4: Simplify right side
    778,844.80x = 384,643,187,962.08
  5. Step 5: Solve for x
    x = 384,643,187,962.08/778,844.80
  6. Step 6: Final answer
    x = 493,863.72

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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.