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Finding the Fourth Proportional to 512,955.18, 707,964.27 and 347,308.02

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Solution

The fourth proportional to 512,955.18, 707,964.27 and 347,308.02 is: 479,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,955.18 : 707,964.27 = 347,308.02 : x
  2. Step 2: Convert to fraction form
    512,955.18/707,964.27 = 347,308.02/x
  3. Step 3: Cross multiply
    512,955.18x = 707,964.27 × 347,308.02
  4. Step 4: Simplify right side
    512,955.18x = 245,881,667,542.04
  5. Step 5: Solve for x
    x = 245,881,667,542.04/512,955.18
  6. Step 6: Final answer
    x = 479,343.38

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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.