Home / 492,948.07-680,299.85-278,009.71

Finding the Fourth Proportional to 492,948.07, 680,299.85 and 278,009.71

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Solution

The fourth proportional to 492,948.07, 680,299.85 and 278,009.71 is: 383,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,948.07 : 680,299.85 = 278,009.71 : x
  2. Step 2: Convert to fraction form
    492,948.07/680,299.85 = 278,009.71/x
  3. Step 3: Cross multiply
    492,948.07x = 680,299.85 × 278,009.71
  4. Step 4: Simplify right side
    492,948.07x = 189,129,964,011.54
  5. Step 5: Solve for x
    x = 189,129,964,011.54/492,948.07
  6. Step 6: Final answer
    x = 383,671.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.