Home / 779,909.70-1,169,864.55-219,039.30

Finding the Fourth Proportional to 779,909.70, 1,169,864.55 and 219,039.30

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Solution

The fourth proportional to 779,909.70, 1,169,864.55 and 219,039.30 is: 328,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,909.70 : 1,169,864.55 = 219,039.30 : x
  2. Step 2: Convert to fraction form
    779,909.70/1,169,864.55 = 219,039.30/x
  3. Step 3: Cross multiply
    779,909.70x = 1,169,864.55 × 219,039.30
  4. Step 4: Simplify right side
    779,909.70x = 256,246,312,126.82
  5. Step 5: Solve for x
    x = 256,246,312,126.82/779,909.70
  6. Step 6: Final answer
    x = 328,558.95

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Similar ratio
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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.