Home / 426,104.30-639,263.49-122,499.01

Finding the Fourth Proportional to 426,104.30, 639,263.49 and 122,499.01

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Solution

The fourth proportional to 426,104.30, 639,263.49 and 122,499.01 is: 183,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,104.30 : 639,263.49 = 122,499.01 : x
  2. Step 2: Convert to fraction form
    426,104.30/639,263.49 = 122,499.01/x
  3. Step 3: Cross multiply
    426,104.30x = 639,263.49 × 122,499.01
  4. Step 4: Simplify right side
    426,104.30x = 78,309,143,884.98
  5. Step 5: Solve for x
    x = 78,309,143,884.98/426,104.30
  6. Step 6: Final answer
    x = 183,779.29

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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.