Home / 426,246.84-639,370.08-126,726.12

Finding the Fourth Proportional to 426,246.84, 639,370.08 and 126,726.12

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Solution

The fourth proportional to 426,246.84, 639,370.08 and 126,726.12 is: 190,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,246.84 : 639,370.08 = 126,726.12 : x
  2. Step 2: Convert to fraction form
    426,246.84/639,370.08 = 126,726.12/x
  3. Step 3: Cross multiply
    426,246.84x = 639,370.08 × 126,726.12
  4. Step 4: Simplify right side
    426,246.84x = 81,024,889,482.49
  5. Step 5: Solve for x
    x = 81,024,889,482.49/426,246.84
  6. Step 6: Final answer
    x = 190,089.13

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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.