Home / 485,055.28-669,287.46-270,190

Finding the Fourth Proportional to 485,055.28, 669,287.46 and 270,190

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Solution

The fourth proportional to 485,055.28, 669,287.46 and 270,190 is: 372,812.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,055.28 : 669,287.46 = 270,190 : x
  2. Step 2: Convert to fraction form
    485,055.28/669,287.46 = 270,190/x
  3. Step 3: Cross multiply
    485,055.28x = 669,287.46 × 270,190
  4. Step 4: Simplify right side
    485,055.28x = 180,834,778,817.40
  5. Step 5: Solve for x
    x = 180,834,778,817.40/485,055.28
  6. Step 6: Final answer
    x = 372,812.72

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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.