Home / 792,135.10-1,188,202.65-456,211.90

Finding the Fourth Proportional to 792,135.10, 1,188,202.65 and 456,211.90

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Solution

The fourth proportional to 792,135.10, 1,188,202.65 and 456,211.90 is: 684,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,135.10 : 1,188,202.65 = 456,211.90 : x
  2. Step 2: Convert to fraction form
    792,135.10/1,188,202.65 = 456,211.90/x
  3. Step 3: Cross multiply
    792,135.10x = 1,188,202.65 × 456,211.90
  4. Step 4: Simplify right side
    792,135.10x = 542,072,188,541.54
  5. Step 5: Solve for x
    x = 542,072,188,541.54/792,135.10
  6. Step 6: Final answer
    x = 684,317.85

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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.