Home / 426,401.46-639,466.11-173,681.46

Finding the Fourth Proportional to 426,401.46, 639,466.11 and 173,681.46

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Solution

The fourth proportional to 426,401.46, 639,466.11 and 173,681.46 is: 260,466.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,401.46 : 639,466.11 = 173,681.46 : x
  2. Step 2: Convert to fraction form
    426,401.46/639,466.11 = 173,681.46/x
  3. Step 3: Cross multiply
    426,401.46x = 639,466.11 × 173,681.46
  4. Step 4: Simplify right side
    426,401.46x = 111,063,407,605.32
  5. Step 5: Solve for x
    x = 111,063,407,605.32/426,401.46
  6. Step 6: Final answer
    x = 260,466.76

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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.