Home / 942,171.86-1,412,722.42-643,014.86

Finding the Fourth Proportional to 942,171.86, 1,412,722.42 and 643,014.86

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Solution

The fourth proportional to 942,171.86, 1,412,722.42 and 643,014.86 is: 964,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,171.86 : 1,412,722.42 = 643,014.86 : x
  2. Step 2: Convert to fraction form
    942,171.86/1,412,722.42 = 643,014.86/x
  3. Step 3: Cross multiply
    942,171.86x = 1,412,722.42 × 643,014.86
  4. Step 4: Simplify right side
    942,171.86x = 908,401,509,115.16
  5. Step 5: Solve for x
    x = 908,401,509,115.16/942,171.86
  6. Step 6: Final answer
    x = 964,156.91

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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.