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Finding the Fourth Proportional to 405,679.82, 559,800.58 and 224,387.85

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Solution

The fourth proportional to 405,679.82, 559,800.58 and 224,387.85 is: 309,634.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,679.82 : 559,800.58 = 224,387.85 : x
  2. Step 2: Convert to fraction form
    405,679.82/559,800.58 = 224,387.85/x
  3. Step 3: Cross multiply
    405,679.82x = 559,800.58 × 224,387.85
  4. Step 4: Simplify right side
    405,679.82x = 125,612,445,810.65
  5. Step 5: Solve for x
    x = 125,612,445,810.65/405,679.82
  6. Step 6: Final answer
    x = 309,634.45

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1.5x scale

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.