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Finding the Fourth Proportional to 512,948.94, 707,955.62 and 347,301.76

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Solution

The fourth proportional to 512,948.94, 707,955.62 and 347,301.76 is: 479,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,948.94 : 707,955.62 = 347,301.76 : x
  2. Step 2: Convert to fraction form
    512,948.94/707,955.62 = 347,301.76/x
  3. Step 3: Cross multiply
    512,948.94x = 707,955.62 × 347,301.76
  4. Step 4: Simplify right side
    512,948.94x = 245,874,232,827.89
  5. Step 5: Solve for x
    x = 245,874,232,827.89/512,948.94
  6. Step 6: Final answer
    x = 479,334.71

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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.