Home / 426,327.14-639,490.73-126,812.01

Finding the Fourth Proportional to 426,327.14, 639,490.73 and 126,812.01

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Solution

The fourth proportional to 426,327.14, 639,490.73 and 126,812.01 is: 190,218.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,327.14 : 639,490.73 = 126,812.01 : x
  2. Step 2: Convert to fraction form
    426,327.14/639,490.73 = 126,812.01/x
  3. Step 3: Cross multiply
    426,327.14x = 639,490.73 × 126,812.01
  4. Step 4: Simplify right side
    426,327.14x = 81,095,104,213.61
  5. Step 5: Solve for x
    x = 81,095,104,213.61/426,327.14
  6. Step 6: Final answer
    x = 190,218.02

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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.