Home / 1,067,637.78-1,473,296.20-638,154.72

Finding the Fourth Proportional to 1,067,637.78, 1,473,296.20 and 638,154.72

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Solution

The fourth proportional to 1,067,637.78, 1,473,296.20 and 638,154.72 is: 880,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067,637.78 : 1,473,296.20 = 638,154.72 : x
  2. Step 2: Convert to fraction form
    1,067,637.78/1,473,296.20 = 638,154.72/x
  3. Step 3: Cross multiply
    1,067,637.78x = 1,473,296.20 × 638,154.72
  4. Step 4: Simplify right side
    1,067,637.78x = 940,190,923,988.06
  5. Step 5: Solve for x
    x = 940,190,923,988.06/1,067,637.78
  6. Step 6: Final answer
    x = 880,627.25

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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.