Home / 1,005,027.05-1,507,079.78-443,772.65

Finding the Fourth Proportional to 1,005,027.05, 1,507,079.78 and 443,772.65

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Solution

The fourth proportional to 1,005,027.05, 1,507,079.78 and 443,772.65 is: 665,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,027.05 : 1,507,079.78 = 443,772.65 : x
  2. Step 2: Convert to fraction form
    1,005,027.05/1,507,079.78 = 443,772.65/x
  3. Step 3: Cross multiply
    1,005,027.05x = 1,507,079.78 × 443,772.65
  4. Step 4: Simplify right side
    1,005,027.05x = 668,800,785,513.15
  5. Step 5: Solve for x
    x = 668,800,785,513.15/1,005,027.05
  6. Step 6: Final answer
    x = 665,455.51

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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.