Home / 735,433.40-1,015,016.19-687,406.88

Finding the Fourth Proportional to 735,433.40, 1,015,016.19 and 687,406.88

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Solution

The fourth proportional to 735,433.40, 1,015,016.19 and 687,406.88 is: 948,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,433.40 : 1,015,016.19 = 687,406.88 : x
  2. Step 2: Convert to fraction form
    735,433.40/1,015,016.19 = 687,406.88/x
  3. Step 3: Cross multiply
    735,433.40x = 1,015,016.19 × 687,406.88
  4. Step 4: Simplify right side
    735,433.40x = 697,729,112,317.39
  5. Step 5: Solve for x
    x = 697,729,112,317.39/735,433.40
  6. Step 6: Final answer
    x = 948,731.88

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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.