Home / 405,284.18-559,360.19-274,402.46

Finding the Fourth Proportional to 405,284.18, 559,360.19 and 274,402.46

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Solution

The fourth proportional to 405,284.18, 559,360.19 and 274,402.46 is: 378,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,284.18 : 559,360.19 = 274,402.46 : x
  2. Step 2: Convert to fraction form
    405,284.18/559,360.19 = 274,402.46/x
  3. Step 3: Cross multiply
    405,284.18x = 559,360.19 × 274,402.46
  4. Step 4: Simplify right side
    405,284.18x = 153,489,814,246.47
  5. Step 5: Solve for x
    x = 153,489,814,246.47/405,284.18
  6. Step 6: Final answer
    x = 378,721.46

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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.