Home / 703,868.80-1,055,803.20-663,318.40

Finding the Fourth Proportional to 703,868.80, 1,055,803.20 and 663,318.40

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Solution

The fourth proportional to 703,868.80, 1,055,803.20 and 663,318.40 is: 994,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,868.80 : 1,055,803.20 = 663,318.40 : x
  2. Step 2: Convert to fraction form
    703,868.80/1,055,803.20 = 663,318.40/x
  3. Step 3: Cross multiply
    703,868.80x = 1,055,803.20 × 663,318.40
  4. Step 4: Simplify right side
    703,868.80x = 700,333,689,338.88
  5. Step 5: Solve for x
    x = 700,333,689,338.88/703,868.80
  6. Step 6: Final answer
    x = 994,977.60

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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.