Home / 812,117.40-1,218,176.10-741,258.60

Finding the Fourth Proportional to 812,117.40, 1,218,176.10 and 741,258.60

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Solution

The fourth proportional to 812,117.40, 1,218,176.10 and 741,258.60 is: 1,111,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,117.40 : 1,218,176.10 = 741,258.60 : x
  2. Step 2: Convert to fraction form
    812,117.40/1,218,176.10 = 741,258.60/x
  3. Step 3: Cross multiply
    812,117.40x = 1,218,176.10 × 741,258.60
  4. Step 4: Simplify right side
    812,117.40x = 902,983,510,439.46
  5. Step 5: Solve for x
    x = 902,983,510,439.46/812,117.40
  6. Step 6: Final answer
    x = 1,111,887.90

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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.