Home / 1,005,489.90-1,507,250.70-899,201.70

Finding the Fourth Proportional to 1,005,489.90, 1,507,250.70 and 899,201.70

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Solution

The fourth proportional to 1,005,489.90, 1,507,250.70 and 899,201.70 is: 1,347,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,489.90 : 1,507,250.70 = 899,201.70 : x
  2. Step 2: Convert to fraction form
    1,005,489.90/1,507,250.70 = 899,201.70/x
  3. Step 3: Cross multiply
    1,005,489.90x = 1,507,250.70 × 899,201.70
  4. Step 4: Simplify right side
    1,005,489.90x = 1,355,322,391,766.19
  5. Step 5: Solve for x
    x = 1,355,322,391,766.19/1,005,489.90
  6. Step 6: Final answer
    x = 1,347,922.43

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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.