Home / 778,916.90-1,168,375.35-442,993.70

Finding the Fourth Proportional to 778,916.90, 1,168,375.35 and 442,993.70

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Solution

The fourth proportional to 778,916.90, 1,168,375.35 and 442,993.70 is: 664,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,916.90 : 1,168,375.35 = 442,993.70 : x
  2. Step 2: Convert to fraction form
    778,916.90/1,168,375.35 = 442,993.70/x
  3. Step 3: Cross multiply
    778,916.90x = 1,168,375.35 × 442,993.70
  4. Step 4: Simplify right side
    778,916.90x = 517,582,919,285.30
  5. Step 5: Solve for x
    x = 517,582,919,285.30/778,916.90
  6. Step 6: Final answer
    x = 664,490.55

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Double scale
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Similar ratio
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1.5x scale

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.