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Finding the Fourth Proportional to 574,916.32, 793,479 and 320,349.52

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Solution

The fourth proportional to 574,916.32, 793,479 and 320,349.52 is: 442,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,916.32 : 793,479 = 320,349.52 : x
  2. Step 2: Convert to fraction form
    574,916.32/793,479 = 320,349.52/x
  3. Step 3: Cross multiply
    574,916.32x = 793,479 × 320,349.52
  4. Step 4: Simplify right side
    574,916.32x = 254,190,616,780.08
  5. Step 5: Solve for x
    x = 254,190,616,780.08/574,916.32
  6. Step 6: Final answer
    x = 442,134.98

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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.