Home / 698,697.60-1,047,139.20-323,923.20

Finding the Fourth Proportional to 698,697.60, 1,047,139.20 and 323,923.20

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Solution

The fourth proportional to 698,697.60, 1,047,139.20 and 323,923.20 is: 485,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,697.60 : 1,047,139.20 = 323,923.20 : x
  2. Step 2: Convert to fraction form
    698,697.60/1,047,139.20 = 323,923.20/x
  3. Step 3: Cross multiply
    698,697.60x = 1,047,139.20 × 323,923.20
  4. Step 4: Simplify right side
    698,697.60x = 339,192,680,509.44
  5. Step 5: Solve for x
    x = 339,192,680,509.44/698,697.60
  6. Step 6: Final answer
    x = 485,464.21

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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.