Home / 1,208,422.02-1,667,589.12-664,557.80

Finding the Fourth Proportional to 1,208,422.02, 1,667,589.12 and 664,557.80

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Solution

The fourth proportional to 1,208,422.02, 1,667,589.12 and 664,557.80 is: 917,071.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,422.02 : 1,667,589.12 = 664,557.80 : x
  2. Step 2: Convert to fraction form
    1,208,422.02/1,667,589.12 = 664,557.80/x
  3. Step 3: Cross multiply
    1,208,422.02x = 1,667,589.12 × 664,557.80
  4. Step 4: Simplify right side
    1,208,422.02x = 1,108,209,356,891.14
  5. Step 5: Solve for x
    x = 1,108,209,356,891.14/1,208,422.02
  6. Step 6: Final answer
    x = 917,071.47

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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.