Home / 805,384.48-1,207,821.46-272,780.95

Finding the Fourth Proportional to 805,384.48, 1,207,821.46 and 272,780.95

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Solution

The fourth proportional to 805,384.48, 1,207,821.46 and 272,780.95 is: 409,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,384.48 : 1,207,821.46 = 272,780.95 : x
  2. Step 2: Convert to fraction form
    805,384.48/1,207,821.46 = 272,780.95/x
  3. Step 3: Cross multiply
    805,384.48x = 1,207,821.46 × 272,780.95
  4. Step 4: Simplify right side
    805,384.48x = 329,470,685,289.19
  5. Step 5: Solve for x
    x = 329,470,685,289.19/805,384.48
  6. Step 6: Final answer
    x = 409,084.97

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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.