Home / 747,840.96-1,121,900.88-242,356.86

Finding the Fourth Proportional to 747,840.96, 1,121,900.88 and 242,356.86

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Solution

The fourth proportional to 747,840.96, 1,121,900.88 and 242,356.86 is: 363,580.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,840.96 : 1,121,900.88 = 242,356.86 : x
  2. Step 2: Convert to fraction form
    747,840.96/1,121,900.88 = 242,356.86/x
  3. Step 3: Cross multiply
    747,840.96x = 1,121,900.88 × 242,356.86
  4. Step 4: Simplify right side
    747,840.96x = 271,900,374,508.04
  5. Step 5: Solve for x
    x = 271,900,374,508.04/747,840.96
  6. Step 6: Final answer
    x = 363,580.48

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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.