Home / 1,291,016.16-1,932,383.52-690,475.68

Finding the Fourth Proportional to 1,291,016.16, 1,932,383.52 and 690,475.68

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Solution

The fourth proportional to 1,291,016.16, 1,932,383.52 and 690,475.68 is: 1,033,498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,016.16 : 1,932,383.52 = 690,475.68 : x
  2. Step 2: Convert to fraction form
    1,291,016.16/1,932,383.52 = 690,475.68/x
  3. Step 3: Cross multiply
    1,291,016.16x = 1,932,383.52 × 690,475.68
  4. Step 4: Simplify right side
    1,291,016.16x = 1,334,263,824,992.79
  5. Step 5: Solve for x
    x = 1,334,263,824,992.79/1,291,016.16
  6. Step 6: Final answer
    x = 1,033,498.93

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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.