Home / 1,008,142.66-1,391,236.12-555,433.66

Finding the Fourth Proportional to 1,008,142.66, 1,391,236.12 and 555,433.66

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Solution

The fourth proportional to 1,008,142.66, 1,391,236.12 and 555,433.66 is: 766,498.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,142.66 : 1,391,236.12 = 555,433.66 : x
  2. Step 2: Convert to fraction form
    1,008,142.66/1,391,236.12 = 555,433.66/x
  3. Step 3: Cross multiply
    1,008,142.66x = 1,391,236.12 × 555,433.66
  4. Step 4: Simplify right side
    1,008,142.66x = 772,739,370,055.80
  5. Step 5: Solve for x
    x = 772,739,370,055.80/1,008,142.66
  6. Step 6: Final answer
    x = 766,498.04

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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.