Home / 1,123,305.90-1,684,958.85-365,145.90

Finding the Fourth Proportional to 1,123,305.90, 1,684,958.85 and 365,145.90

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Solution

The fourth proportional to 1,123,305.90, 1,684,958.85 and 365,145.90 is: 547,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,305.90 : 1,684,958.85 = 365,145.90 : x
  2. Step 2: Convert to fraction form
    1,123,305.90/1,684,958.85 = 365,145.90/x
  3. Step 3: Cross multiply
    1,123,305.90x = 1,684,958.85 × 365,145.90
  4. Step 4: Simplify right side
    1,123,305.90x = 615,255,815,746.22
  5. Step 5: Solve for x
    x = 615,255,815,746.22/1,123,305.90
  6. Step 6: Final answer
    x = 547,718.85

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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.