Home / 727,019.52-1,002,633.80-455,112.20

Finding the Fourth Proportional to 727,019.52, 1,002,633.80 and 455,112.20

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Solution

The fourth proportional to 727,019.52, 1,002,633.80 and 455,112.20 is: 627,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,019.52 : 1,002,633.80 = 455,112.20 : x
  2. Step 2: Convert to fraction form
    727,019.52/1,002,633.80 = 455,112.20/x
  3. Step 3: Cross multiply
    727,019.52x = 1,002,633.80 × 455,112.20
  4. Step 4: Simplify right side
    727,019.52x = 456,310,875,650.14
  5. Step 5: Solve for x
    x = 456,310,875,650.14/727,019.52
  6. Step 6: Final answer
    x = 627,645.98

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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.