Home / 1,206,976.60-1,665,639.02-663,123.69

Finding the Fourth Proportional to 1,206,976.60, 1,665,639.02 and 663,123.69

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Solution

The fourth proportional to 1,206,976.60, 1,665,639.02 and 663,123.69 is: 915,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,976.60 : 1,665,639.02 = 663,123.69 : x
  2. Step 2: Convert to fraction form
    1,206,976.60/1,665,639.02 = 663,123.69/x
  3. Step 3: Cross multiply
    1,206,976.60x = 1,665,639.02 × 663,123.69
  4. Step 4: Simplify right side
    1,206,976.60x = 1,104,524,688,258.55
  5. Step 5: Solve for x
    x = 1,104,524,688,258.55/1,206,976.60
  6. Step 6: Final answer
    x = 915,116.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.