Home / 886,867.80-1,330,301.70-813,384.60

Finding the Fourth Proportional to 886,867.80, 1,330,301.70 and 813,384.60

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Solution

The fourth proportional to 886,867.80, 1,330,301.70 and 813,384.60 is: 1,220,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,867.80 : 1,330,301.70 = 813,384.60 : x
  2. Step 2: Convert to fraction form
    886,867.80/1,330,301.70 = 813,384.60/x
  3. Step 3: Cross multiply
    886,867.80x = 1,330,301.70 × 813,384.60
  4. Step 4: Simplify right side
    886,867.80x = 1,082,046,916,133.82
  5. Step 5: Solve for x
    x = 1,082,046,916,133.82/886,867.80
  6. Step 6: Final answer
    x = 1,220,076.90

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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.