Home / 1,208,254.17-1,667,418.21-664,420.17

Finding the Fourth Proportional to 1,208,254.17, 1,667,418.21 and 664,420.17

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Solution

The fourth proportional to 1,208,254.17, 1,667,418.21 and 664,420.17 is: 916,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,254.17 : 1,667,418.21 = 664,420.17 : x
  2. Step 2: Convert to fraction form
    1,208,254.17/1,667,418.21 = 664,420.17/x
  3. Step 3: Cross multiply
    1,208,254.17x = 1,667,418.21 × 664,420.17
  4. Step 4: Simplify right side
    1,208,254.17x = 1,107,866,290,549.30
  5. Step 5: Solve for x
    x = 1,107,866,290,549.30/1,208,254.17
  6. Step 6: Final answer
    x = 916,914.93

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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.