Home / 814,637.20-1,221,955.80-802,195.60

Finding the Fourth Proportional to 814,637.20, 1,221,955.80 and 802,195.60

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Solution

The fourth proportional to 814,637.20, 1,221,955.80 and 802,195.60 is: 1,203,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,637.20 : 1,221,955.80 = 802,195.60 : x
  2. Step 2: Convert to fraction form
    814,637.20/1,221,955.80 = 802,195.60/x
  3. Step 3: Cross multiply
    814,637.20x = 1,221,955.80 × 802,195.60
  4. Step 4: Simplify right side
    814,637.20x = 980,247,566,154.48
  5. Step 5: Solve for x
    x = 980,247,566,154.48/814,637.20
  6. Step 6: Final answer
    x = 1,203,293.40

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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.