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Finding the Fourth Proportional to 480,879.65, 722,628.03 and 256,398.68

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Solution

The fourth proportional to 480,879.65, 722,628.03 and 256,398.68 is: 385,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,879.65 : 722,628.03 = 256,398.68 : x
  2. Step 2: Convert to fraction form
    480,879.65/722,628.03 = 256,398.68/x
  3. Step 3: Cross multiply
    480,879.65x = 722,628.03 × 256,398.68
  4. Step 4: Simplify right side
    480,879.65x = 185,280,875,791.07
  5. Step 5: Solve for x
    x = 185,280,875,791.07/480,879.65
  6. Step 6: Final answer
    x = 385,295.73

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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.