Home / 1,169,548.32-1,613,989.92-686,121.72

Finding the Fourth Proportional to 1,169,548.32, 1,613,989.92 and 686,121.72

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Solution

The fourth proportional to 1,169,548.32, 1,613,989.92 and 686,121.72 is: 946,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169,548.32 : 1,613,989.92 = 686,121.72 : x
  2. Step 2: Convert to fraction form
    1,169,548.32/1,613,989.92 = 686,121.72/x
  3. Step 3: Cross multiply
    1,169,548.32x = 1,613,989.92 × 686,121.72
  4. Step 4: Simplify right side
    1,169,548.32x = 1,107,393,539,973.06
  5. Step 5: Solve for x
    x = 1,107,393,539,973.06/1,169,548.32
  6. Step 6: Final answer
    x = 946,855.74

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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.