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Finding the Fourth Proportional to 515,553.35, 773,080.02 and 302,390.89

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Solution

The fourth proportional to 515,553.35, 773,080.02 and 302,390.89 is: 453,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,553.35 : 773,080.02 = 302,390.89 : x
  2. Step 2: Convert to fraction form
    515,553.35/773,080.02 = 302,390.89/x
  3. Step 3: Cross multiply
    515,553.35x = 773,080.02 × 302,390.89
  4. Step 4: Simplify right side
    515,553.35x = 233,772,353,356.32
  5. Step 5: Solve for x
    x = 233,772,353,356.32/515,553.35
  6. Step 6: Final answer
    x = 453,439.70

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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.