Home / 1,227,029.31-1,840,642.38-428,293.17

Finding the Fourth Proportional to 1,227,029.31, 1,840,642.38 and 428,293.17

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Solution

The fourth proportional to 1,227,029.31, 1,840,642.38 and 428,293.17 is: 642,474.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,029.31 : 1,840,642.38 = 428,293.17 : x
  2. Step 2: Convert to fraction form
    1,227,029.31/1,840,642.38 = 428,293.17/x
  3. Step 3: Cross multiply
    1,227,029.31x = 1,840,642.38 × 428,293.17
  4. Step 4: Simplify right side
    1,227,029.31x = 788,334,559,766.55
  5. Step 5: Solve for x
    x = 788,334,559,766.55/1,227,029.31
  6. Step 6: Final answer
    x = 642,474.11

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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.