Home / 814,258.20-1,221,387.30-683,621.40

Finding the Fourth Proportional to 814,258.20, 1,221,387.30 and 683,621.40

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Solution

The fourth proportional to 814,258.20, 1,221,387.30 and 683,621.40 is: 1,025,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,258.20 : 1,221,387.30 = 683,621.40 : x
  2. Step 2: Convert to fraction form
    814,258.20/1,221,387.30 = 683,621.40/x
  3. Step 3: Cross multiply
    814,258.20x = 1,221,387.30 × 683,621.40
  4. Step 4: Simplify right side
    814,258.20x = 834,966,495,968.22
  5. Step 5: Solve for x
    x = 834,966,495,968.22/814,258.20
  6. Step 6: Final answer
    x = 1,025,432.10

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1.5x scale

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.