Home / 1,040,403.60-1,560,216.60-723,920.40

Finding the Fourth Proportional to 1,040,403.60, 1,560,216.60 and 723,920.40

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Solution

The fourth proportional to 1,040,403.60, 1,560,216.60 and 723,920.40 is: 1,085,610.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,403.60 : 1,560,216.60 = 723,920.40 : x
  2. Step 2: Convert to fraction form
    1,040,403.60/1,560,216.60 = 723,920.40/x
  3. Step 3: Cross multiply
    1,040,403.60x = 1,560,216.60 × 723,920.40
  4. Step 4: Simplify right side
    1,040,403.60x = 1,129,472,625,158.64
  5. Step 5: Solve for x
    x = 1,129,472,625,158.64/1,040,403.60
  6. Step 6: Final answer
    x = 1,085,610.07

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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.