Home / 1,489,386.32-2,055,374.16-810,323.36

Finding the Fourth Proportional to 1,489,386.32, 2,055,374.16 and 810,323.36

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Solution

The fourth proportional to 1,489,386.32, 2,055,374.16 and 810,323.36 is: 1,118,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,386.32 : 2,055,374.16 = 810,323.36 : x
  2. Step 2: Convert to fraction form
    1,489,386.32/2,055,374.16 = 810,323.36/x
  3. Step 3: Cross multiply
    1,489,386.32x = 2,055,374.16 × 810,323.36
  4. Step 4: Simplify right side
    1,489,386.32x = 1,665,517,695,388.38
  5. Step 5: Solve for x
    x = 1,665,517,695,388.38/1,489,386.32
  6. Step 6: Final answer
    x = 1,118,257.68

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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.