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Finding the Fourth Proportional to 515,549.97, 773,074.96 and 302,387.51

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Solution

The fourth proportional to 515,549.97, 773,074.96 and 302,387.51 is: 453,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,549.97 : 773,074.96 = 302,387.51 : x
  2. Step 2: Convert to fraction form
    515,549.97/773,074.96 = 302,387.51/x
  3. Step 3: Cross multiply
    515,549.97x = 773,074.96 × 302,387.51
  4. Step 4: Simplify right side
    515,549.97x = 233,768,213,374.47
  5. Step 5: Solve for x
    x = 233,768,213,374.47/515,549.97
  6. Step 6: Final answer
    x = 453,434.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.