Home / 1,114,231.60-1,539,081.98-921,418.14

Finding the Fourth Proportional to 1,114,231.60, 1,539,081.98 and 921,418.14

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Solution

The fourth proportional to 1,114,231.60, 1,539,081.98 and 921,418.14 is: 1,272,749.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,231.60 : 1,539,081.98 = 921,418.14 : x
  2. Step 2: Convert to fraction form
    1,114,231.60/1,539,081.98 = 921,418.14/x
  3. Step 3: Cross multiply
    1,114,231.60x = 1,539,081.98 × 921,418.14
  4. Step 4: Simplify right side
    1,114,231.60x = 1,418,138,055,319.12
  5. Step 5: Solve for x
    x = 1,418,138,055,319.12/1,114,231.60
  6. Step 6: Final answer
    x = 1,272,749.81

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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.