Home / 660,917.13-991,428.23-281,841.10

Finding the Fourth Proportional to 660,917.13, 991,428.23 and 281,841.10

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Solution

The fourth proportional to 660,917.13, 991,428.23 and 281,841.10 is: 422,784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,917.13 : 991,428.23 = 281,841.10 : x
  2. Step 2: Convert to fraction form
    660,917.13/991,428.23 = 281,841.10/x
  3. Step 3: Cross multiply
    660,917.13x = 991,428.23 × 281,841.10
  4. Step 4: Simplify right side
    660,917.13x = 279,425,222,914.25
  5. Step 5: Solve for x
    x = 279,425,222,914.25/660,917.13
  6. Step 6: Final answer
    x = 422,784.05

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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.