Home / 1,006,708.76-1,389,258.30-553,999.76

Finding the Fourth Proportional to 1,006,708.76, 1,389,258.30 and 553,999.76

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Solution

The fourth proportional to 1,006,708.76, 1,389,258.30 and 553,999.76 is: 764,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,708.76 : 1,389,258.30 = 553,999.76 : x
  2. Step 2: Convert to fraction form
    1,006,708.76/1,389,258.30 = 553,999.76/x
  3. Step 3: Cross multiply
    1,006,708.76x = 1,389,258.30 × 553,999.76
  4. Step 4: Simplify right side
    1,006,708.76x = 769,648,764,778.01
  5. Step 5: Solve for x
    x = 769,648,764,778.01/1,006,708.76
  6. Step 6: Final answer
    x = 764,519.79

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1.5x scale

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.