Home / 1,288,111.60-1,932,167.40-756,233.20

Finding the Fourth Proportional to 1,288,111.60, 1,932,167.40 and 756,233.20

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Solution

The fourth proportional to 1,288,111.60, 1,932,167.40 and 756,233.20 is: 1,134,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,111.60 : 1,932,167.40 = 756,233.20 : x
  2. Step 2: Convert to fraction form
    1,288,111.60/1,932,167.40 = 756,233.20/x
  3. Step 3: Cross multiply
    1,288,111.60x = 1,932,167.40 × 756,233.20
  4. Step 4: Simplify right side
    1,288,111.60x = 1,461,169,135,837.68
  5. Step 5: Solve for x
    x = 1,461,169,135,837.68/1,288,111.60
  6. Step 6: Final answer
    x = 1,134,349.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.