Home / 1,147,883.40-1,721,825.09-418,461.32

Finding the Fourth Proportional to 1,147,883.40, 1,721,825.09 and 418,461.32

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Solution

The fourth proportional to 1,147,883.40, 1,721,825.09 and 418,461.32 is: 627,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,883.40 : 1,721,825.09 = 418,461.32 : x
  2. Step 2: Convert to fraction form
    1,147,883.40/1,721,825.09 = 418,461.32/x
  3. Step 3: Cross multiply
    1,147,883.40x = 1,721,825.09 × 418,461.32
  4. Step 4: Simplify right side
    1,147,883.40x = 720,517,199,970.52
  5. Step 5: Solve for x
    x = 720,517,199,970.52/1,147,883.40
  6. Step 6: Final answer
    x = 627,691.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.