Home / 816,258.36-1,220,806.32-726,931.02

Finding the Fourth Proportional to 816,258.36, 1,220,806.32 and 726,931.02

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Solution

The fourth proportional to 816,258.36, 1,220,806.32 and 726,931.02 is: 1,087,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,258.36 : 1,220,806.32 = 726,931.02 : x
  2. Step 2: Convert to fraction form
    816,258.36/1,220,806.32 = 726,931.02/x
  3. Step 3: Cross multiply
    816,258.36x = 1,220,806.32 × 726,931.02
  4. Step 4: Simplify right side
    816,258.36x = 887,441,983,420.05
  5. Step 5: Solve for x
    x = 887,441,983,420.05/816,258.36
  6. Step 6: Final answer
    x = 1,087,207.22

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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.