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Finding the Fourth Proportional to 547,851.34, 756,033.18 and 306,134.14

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Solution

The fourth proportional to 547,851.34, 756,033.18 and 306,134.14 is: 422,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,851.34 : 756,033.18 = 306,134.14 : x
  2. Step 2: Convert to fraction form
    547,851.34/756,033.18 = 306,134.14/x
  3. Step 3: Cross multiply
    547,851.34x = 756,033.18 × 306,134.14
  4. Step 4: Simplify right side
    547,851.34x = 231,447,567,370.77
  5. Step 5: Solve for x
    x = 231,447,567,370.77/547,851.34
  6. Step 6: Final answer
    x = 422,464.18

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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.