Home / 683,138.40-1,024,707.60-433,999.20

Finding the Fourth Proportional to 683,138.40, 1,024,707.60 and 433,999.20

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Solution

The fourth proportional to 683,138.40, 1,024,707.60 and 433,999.20 is: 650,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,138.40 : 1,024,707.60 = 433,999.20 : x
  2. Step 2: Convert to fraction form
    683,138.40/1,024,707.60 = 433,999.20/x
  3. Step 3: Cross multiply
    683,138.40x = 1,024,707.60 × 433,999.20
  4. Step 4: Simplify right side
    683,138.40x = 444,722,278,633.92
  5. Step 5: Solve for x
    x = 444,722,278,633.92/683,138.40
  6. Step 6: Final answer
    x = 650,998.80

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1.5x scale

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.