Home / 426,363.15-639,544.68-126,848.01

Finding the Fourth Proportional to 426,363.15, 639,544.68 and 126,848.01

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Solution

The fourth proportional to 426,363.15, 639,544.68 and 126,848.01 is: 190,272.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,363.15 : 639,544.68 = 126,848.01 : x
  2. Step 2: Convert to fraction form
    426,363.15/639,544.68 = 126,848.01/x
  3. Step 3: Cross multiply
    426,363.15x = 639,544.68 × 126,848.01
  4. Step 4: Simplify right side
    426,363.15x = 81,124,969,964.09
  5. Step 5: Solve for x
    x = 81,124,969,964.09/426,363.15
  6. Step 6: Final answer
    x = 190,272.00

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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.