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Finding the Fourth Proportional to 662,642.48, 994,080.60 and 242,505.20

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Solution

The fourth proportional to 662,642.48, 994,080.60 and 242,505.20 is: 363,800.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,642.48 : 994,080.60 = 242,505.20 : x
  2. Step 2: Convert to fraction form
    662,642.48/994,080.60 = 242,505.20/x
  3. Step 3: Cross multiply
    662,642.48x = 994,080.60 × 242,505.20
  4. Step 4: Simplify right side
    662,642.48x = 241,069,714,719.12
  5. Step 5: Solve for x
    x = 241,069,714,719.12/662,642.48
  6. Step 6: Final answer
    x = 363,800.57

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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.