Home / 890,285.42-1,335,489.78-357,806.90

Finding the Fourth Proportional to 890,285.42, 1,335,489.78 and 357,806.90

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Solution

The fourth proportional to 890,285.42, 1,335,489.78 and 357,806.90 is: 536,735.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,285.42 : 1,335,489.78 = 357,806.90 : x
  2. Step 2: Convert to fraction form
    890,285.42/1,335,489.78 = 357,806.90/x
  3. Step 3: Cross multiply
    890,285.42x = 1,335,489.78 × 357,806.90
  4. Step 4: Simplify right side
    890,285.42x = 477,847,458,163.48
  5. Step 5: Solve for x
    x = 477,847,458,163.48/890,285.42
  6. Step 6: Final answer
    x = 536,735.13

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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.