Home / 1,276,882.20-1,762,176.78-703,921.32

Finding the Fourth Proportional to 1,276,882.20, 1,762,176.78 and 703,921.32

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Solution

The fourth proportional to 1,276,882.20, 1,762,176.78 and 703,921.32 is: 971,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,882.20 : 1,762,176.78 = 703,921.32 : x
  2. Step 2: Convert to fraction form
    1,276,882.20/1,762,176.78 = 703,921.32/x
  3. Step 3: Cross multiply
    1,276,882.20x = 1,762,176.78 × 703,921.32
  4. Step 4: Simplify right side
    1,276,882.20x = 1,240,433,805,050.95
  5. Step 5: Solve for x
    x = 1,240,433,805,050.95/1,276,882.20
  6. Step 6: Final answer
    x = 971,455.16

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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.