Home / 1,227,031.31-1,840,645.38-428,295.17

Finding the Fourth Proportional to 1,227,031.31, 1,840,645.38 and 428,295.17

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Solution

The fourth proportional to 1,227,031.31, 1,840,645.38 and 428,295.17 is: 642,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,031.31 : 1,840,645.38 = 428,295.17 : x
  2. Step 2: Convert to fraction form
    1,227,031.31/1,840,645.38 = 428,295.17/x
  3. Step 3: Cross multiply
    1,227,031.31x = 1,840,645.38 × 428,295.17
  4. Step 4: Simplify right side
    1,227,031.31x = 788,339,525,936.82
  5. Step 5: Solve for x
    x = 788,339,525,936.82/1,227,031.31
  6. Step 6: Final answer
    x = 642,477.11

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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.