Home / 1,487,020.55-2,230,491.47-422,062.65

Finding the Fourth Proportional to 1,487,020.55, 2,230,491.47 and 422,062.65

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Solution

The fourth proportional to 1,487,020.55, 2,230,491.47 and 422,062.65 is: 633,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,020.55 : 2,230,491.47 = 422,062.65 : x
  2. Step 2: Convert to fraction form
    1,487,020.55/2,230,491.47 = 422,062.65/x
  3. Step 3: Cross multiply
    1,487,020.55x = 2,230,491.47 × 422,062.65
  4. Step 4: Simplify right side
    1,487,020.55x = 941,407,138,520.28
  5. Step 5: Solve for x
    x = 941,407,138,520.28/1,487,020.55
  6. Step 6: Final answer
    x = 633,082.81

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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.