Home / 515,642.20-773,484.04-245,631.54

Finding the Fourth Proportional to 515,642.20, 773,484.04 and 245,631.54

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Solution

The fourth proportional to 515,642.20, 773,484.04 and 245,631.54 is: 368,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,642.20 : 773,484.04 = 245,631.54 : x
  2. Step 2: Convert to fraction form
    515,642.20/773,484.04 = 245,631.54/x
  3. Step 3: Cross multiply
    515,642.20x = 773,484.04 × 245,631.54
  4. Step 4: Simplify right side
    515,642.20x = 189,992,073,385.70
  5. Step 5: Solve for x
    x = 189,992,073,385.70/515,642.20
  6. Step 6: Final answer
    x = 368,457.18

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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.