Home / 698,035.20-1,047,201.60-398,659.20

Finding the Fourth Proportional to 698,035.20, 1,047,201.60 and 398,659.20

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Solution

The fourth proportional to 698,035.20, 1,047,201.60 and 398,659.20 is: 598,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,035.20 : 1,047,201.60 = 398,659.20 : x
  2. Step 2: Convert to fraction form
    698,035.20/1,047,201.60 = 398,659.20/x
  3. Step 3: Cross multiply
    698,035.20x = 1,047,201.60 × 398,659.20
  4. Step 4: Simplify right side
    698,035.20x = 417,476,552,094.72
  5. Step 5: Solve for x
    x = 417,476,552,094.72/698,035.20
  6. Step 6: Final answer
    x = 598,073.78

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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.