Home / 320,433.83-480,678.02-83,776.13

Finding the Fourth Proportional to 320,433.83, 480,678.02 and 83,776.13

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Solution

The fourth proportional to 320,433.83, 480,678.02 and 83,776.13 is: 125,671.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,433.83 : 480,678.02 = 83,776.13 : x
  2. Step 2: Convert to fraction form
    320,433.83/480,678.02 = 83,776.13/x
  3. Step 3: Cross multiply
    320,433.83x = 480,678.02 × 83,776.13
  4. Step 4: Simplify right side
    320,433.83x = 40,269,344,291.66
  5. Step 5: Solve for x
    x = 40,269,344,291.66/320,433.83
  6. Step 6: Final answer
    x = 125,671.33

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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.