Home / 698,546.58-1,047,073.80-398,380.86

Finding the Fourth Proportional to 698,546.58, 1,047,073.80 and 398,380.86

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Solution

The fourth proportional to 698,546.58, 1,047,073.80 and 398,380.86 is: 597,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,546.58 : 1,047,073.80 = 398,380.86 : x
  2. Step 2: Convert to fraction form
    698,546.58/1,047,073.80 = 398,380.86/x
  3. Step 3: Cross multiply
    698,546.58x = 1,047,073.80 × 398,380.86
  4. Step 4: Simplify right side
    698,546.58x = 417,134,160,927.47
  5. Step 5: Solve for x
    x = 417,134,160,927.47/698,546.58
  6. Step 6: Final answer
    x = 597,145.81

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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.