Home / 1,098,460-1,515,897.84-621,532

Finding the Fourth Proportional to 1,098,460, 1,515,897.84 and 621,532

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Solution

The fourth proportional to 1,098,460, 1,515,897.84 and 621,532 is: 857,727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,460 : 1,515,897.84 = 621,532 : x
  2. Step 2: Convert to fraction form
    1,098,460/1,515,897.84 = 621,532/x
  3. Step 3: Cross multiply
    1,098,460x = 1,515,897.84 × 621,532
  4. Step 4: Simplify right side
    1,098,460x = 942,179,016,290.88
  5. Step 5: Solve for x
    x = 942,179,016,290.88/1,098,460
  6. Step 6: Final answer
    x = 857,727.20

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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.