Home / 778,515.40-1,167,773.10-279,929.80

Finding the Fourth Proportional to 778,515.40, 1,167,773.10 and 279,929.80

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Solution

The fourth proportional to 778,515.40, 1,167,773.10 and 279,929.80 is: 419,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,515.40 : 1,167,773.10 = 279,929.80 : x
  2. Step 2: Convert to fraction form
    778,515.40/1,167,773.10 = 279,929.80/x
  3. Step 3: Cross multiply
    778,515.40x = 1,167,773.10 × 279,929.80
  4. Step 4: Simplify right side
    778,515.40x = 326,894,490,328.38
  5. Step 5: Solve for x
    x = 326,894,490,328.38/778,515.40
  6. Step 6: Final answer
    x = 419,894.70

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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.