Home / 455,335.54-681,311.76-286,063.36

Finding the Fourth Proportional to 455,335.54, 681,311.76 and 286,063.36

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Solution

The fourth proportional to 455,335.54, 681,311.76 and 286,063.36 is: 428,032.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,335.54 : 681,311.76 = 286,063.36 : x
  2. Step 2: Convert to fraction form
    455,335.54/681,311.76 = 286,063.36/x
  3. Step 3: Cross multiply
    455,335.54x = 681,311.76 × 286,063.36
  4. Step 4: Simplify right side
    455,335.54x = 194,898,331,273.11
  5. Step 5: Solve for x
    x = 194,898,331,273.11/455,335.54
  6. Step 6: Final answer
    x = 428,032.33

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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.