Home / 474,389.12-654,644.43-280,806.81

Finding the Fourth Proportional to 474,389.12, 654,644.43 and 280,806.81

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Solution

The fourth proportional to 474,389.12, 654,644.43 and 280,806.81 is: 387,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,389.12 : 654,644.43 = 280,806.81 : x
  2. Step 2: Convert to fraction form
    474,389.12/654,644.43 = 280,806.81/x
  3. Step 3: Cross multiply
    474,389.12x = 654,644.43 × 280,806.81
  4. Step 4: Simplify right side
    474,389.12x = 183,828,614,072.57
  5. Step 5: Solve for x
    x = 183,828,614,072.57/474,389.12
  6. Step 6: Final answer
    x = 387,505.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.