Home / 763,150.56-1,053,128.28-418,984.80

Finding the Fourth Proportional to 763,150.56, 1,053,128.28 and 418,984.80

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Solution

The fourth proportional to 763,150.56, 1,053,128.28 and 418,984.80 is: 578,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,150.56 : 1,053,128.28 = 418,984.80 : x
  2. Step 2: Convert to fraction form
    763,150.56/1,053,128.28 = 418,984.80/x
  3. Step 3: Cross multiply
    763,150.56x = 1,053,128.28 × 418,984.80
  4. Step 4: Simplify right side
    763,150.56x = 441,244,741,770.14
  5. Step 5: Solve for x
    x = 441,244,741,770.14/763,150.56
  6. Step 6: Final answer
    x = 578,188.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.