Home / 963,216.45-1,330,132.23-721,078.65

Finding the Fourth Proportional to 963,216.45, 1,330,132.23 and 721,078.65

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Solution

The fourth proportional to 963,216.45, 1,330,132.23 and 721,078.65 is: 995,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,216.45 : 1,330,132.23 = 721,078.65 : x
  2. Step 2: Convert to fraction form
    963,216.45/1,330,132.23 = 721,078.65/x
  3. Step 3: Cross multiply
    963,216.45x = 1,330,132.23 × 721,078.65
  4. Step 4: Simplify right side
    963,216.45x = 959,129,952,729.89
  5. Step 5: Solve for x
    x = 959,129,952,729.89/963,216.45
  6. Step 6: Final answer
    x = 995,757.45

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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.