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Finding the Fourth Proportional to 675,156.72, 931,399.11 and 481,607.22

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Solution

The fourth proportional to 675,156.72, 931,399.11 and 481,607.22 is: 664,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,156.72 : 931,399.11 = 481,607.22 : x
  2. Step 2: Convert to fraction form
    675,156.72/931,399.11 = 481,607.22/x
  3. Step 3: Cross multiply
    675,156.72x = 931,399.11 × 481,607.22
  4. Step 4: Simplify right side
    675,156.72x = 448,568,536,077.57
  5. Step 5: Solve for x
    x = 448,568,536,077.57/675,156.72
  6. Step 6: Final answer
    x = 664,391.72

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1.5x scale

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.