Home / 1,259,816.86-1,738,472.31-715,877.15

Finding the Fourth Proportional to 1,259,816.86, 1,738,472.31 and 715,877.15

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Solution

The fourth proportional to 1,259,816.86, 1,738,472.31 and 715,877.15 is: 987,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,816.86 : 1,738,472.31 = 715,877.15 : x
  2. Step 2: Convert to fraction form
    1,259,816.86/1,738,472.31 = 715,877.15/x
  3. Step 3: Cross multiply
    1,259,816.86x = 1,738,472.31 × 715,877.15
  4. Step 4: Simplify right side
    1,259,816.86x = 1,244,532,602,636.72
  5. Step 5: Solve for x
    x = 1,244,532,602,636.72/1,259,816.86
  6. Step 6: Final answer
    x = 987,867.87

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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.