Home / 1,145,425.80-1,718,138.70-880,523.40

Finding the Fourth Proportional to 1,145,425.80, 1,718,138.70 and 880,523.40

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Solution

The fourth proportional to 1,145,425.80, 1,718,138.70 and 880,523.40 is: 1,320,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,425.80 : 1,718,138.70 = 880,523.40 : x
  2. Step 2: Convert to fraction form
    1,145,425.80/1,718,138.70 = 880,523.40/x
  3. Step 3: Cross multiply
    1,145,425.80x = 1,718,138.70 × 880,523.40
  4. Step 4: Simplify right side
    1,145,425.80x = 1,512,861,329,795.58
  5. Step 5: Solve for x
    x = 1,512,861,329,795.58/1,145,425.80
  6. Step 6: Final answer
    x = 1,320,785.10

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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.