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Finding the Fourth Proportional to 515,925.91, 773,604.69 and 276,320.62

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Solution

The fourth proportional to 515,925.91, 773,604.69 and 276,320.62 is: 414,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,925.91 : 773,604.69 = 276,320.62 : x
  2. Step 2: Convert to fraction form
    515,925.91/773,604.69 = 276,320.62/x
  3. Step 3: Cross multiply
    515,925.91x = 773,604.69 × 276,320.62
  4. Step 4: Simplify right side
    515,925.91x = 213,762,927,575.71
  5. Step 5: Solve for x
    x = 213,762,927,575.71/515,925.91
  6. Step 6: Final answer
    x = 414,328.73

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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.