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Finding the Fourth Proportional to 444,255.12, 612,434.37 and 316,709.28

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Solution

The fourth proportional to 444,255.12, 612,434.37 and 316,709.28 is: 436,604.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,255.12 : 612,434.37 = 316,709.28 : x
  2. Step 2: Convert to fraction form
    444,255.12/612,434.37 = 316,709.28/x
  3. Step 3: Cross multiply
    444,255.12x = 612,434.37 × 316,709.28
  4. Step 4: Simplify right side
    444,255.12x = 193,963,648,369.95
  5. Step 5: Solve for x
    x = 193,963,648,369.95/444,255.12
  6. Step 6: Final answer
    x = 436,604.19

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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.