Home / 405,453.40-558,923.39-347,815.01

Finding the Fourth Proportional to 405,453.40, 558,923.39 and 347,815.01

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Solution

The fourth proportional to 405,453.40, 558,923.39 and 347,815.01 is: 479,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,453.40 : 558,923.39 = 347,815.01 : x
  2. Step 2: Convert to fraction form
    405,453.40/558,923.39 = 347,815.01/x
  3. Step 3: Cross multiply
    405,453.40x = 558,923.39 × 347,815.01
  4. Step 4: Simplify right side
    405,453.40x = 194,401,945,444.62
  5. Step 5: Solve for x
    x = 194,401,945,444.62/405,453.40
  6. Step 6: Final answer
    x = 479,468.04

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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.