Home / 778,861.60-1,167,946.80-357,920.80

Finding the Fourth Proportional to 778,861.60, 1,167,946.80 and 357,920.80

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Solution

The fourth proportional to 778,861.60, 1,167,946.80 and 357,920.80 is: 536,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,861.60 : 1,167,946.80 = 357,920.80 : x
  2. Step 2: Convert to fraction form
    778,861.60/1,167,946.80 = 357,920.80/x
  3. Step 3: Cross multiply
    778,861.60x = 1,167,946.80 × 357,920.80
  4. Step 4: Simplify right side
    778,861.60x = 418,032,453,013.44
  5. Step 5: Solve for x
    x = 418,032,453,013.44/778,861.60
  6. Step 6: Final answer
    x = 536,722.38

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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.