Home / 459,316.96-688,988.40-126,892.96

Finding the Fourth Proportional to 459,316.96, 688,988.40 and 126,892.96

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Solution

The fourth proportional to 459,316.96, 688,988.40 and 126,892.96 is: 190,343.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,316.96 : 688,988.40 = 126,892.96 : x
  2. Step 2: Convert to fraction form
    459,316.96/688,988.40 = 126,892.96/x
  3. Step 3: Cross multiply
    459,316.96x = 688,988.40 × 126,892.96
  4. Step 4: Simplify right side
    459,316.96x = 87,427,777,481.66
  5. Step 5: Solve for x
    x = 87,427,777,481.66/459,316.96
  6. Step 6: Final answer
    x = 190,343.02

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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.