Home / 1,231,247.82-1,699,150.56-772,381.72

Finding the Fourth Proportional to 1,231,247.82, 1,699,150.56 and 772,381.72

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Solution

The fourth proportional to 1,231,247.82, 1,699,150.56 and 772,381.72 is: 1,065,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,247.82 : 1,699,150.56 = 772,381.72 : x
  2. Step 2: Convert to fraction form
    1,231,247.82/1,699,150.56 = 772,381.72/x
  3. Step 3: Cross multiply
    1,231,247.82x = 1,699,150.56 × 772,381.72
  4. Step 4: Simplify right side
    1,231,247.82x = 1,312,392,832,071.76
  5. Step 5: Solve for x
    x = 1,312,392,832,071.76/1,231,247.82
  6. Step 6: Final answer
    x = 1,065,904.70

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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.