Home / 1,008,959.97-1,391,577.45-646,417.80

Finding the Fourth Proportional to 1,008,959.97, 1,391,577.45 and 646,417.80

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Solution

The fourth proportional to 1,008,959.97, 1,391,577.45 and 646,417.80 is: 891,552.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,959.97 : 1,391,577.45 = 646,417.80 : x
  2. Step 2: Convert to fraction form
    1,008,959.97/1,391,577.45 = 646,417.80/x
  3. Step 3: Cross multiply
    1,008,959.97x = 1,391,577.45 × 646,417.80
  4. Step 4: Simplify right side
    1,008,959.97x = 899,540,433,758.61
  5. Step 5: Solve for x
    x = 899,540,433,758.61/1,008,959.97
  6. Step 6: Final answer
    x = 891,552.15

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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.