Home / 480,815.86-663,542.28-274,114.82

Finding the Fourth Proportional to 480,815.86, 663,542.28 and 274,114.82

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Solution

The fourth proportional to 480,815.86, 663,542.28 and 274,114.82 is: 378,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,815.86 : 663,542.28 = 274,114.82 : x
  2. Step 2: Convert to fraction form
    480,815.86/663,542.28 = 274,114.82/x
  3. Step 3: Cross multiply
    480,815.86x = 663,542.28 × 274,114.82
  4. Step 4: Simplify right side
    480,815.86x = 181,886,772,644.59
  5. Step 5: Solve for x
    x = 181,886,772,644.59/480,815.86
  6. Step 6: Final answer
    x = 378,287.80

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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.