Home / 708,100.11-1,063,076.10-420,436.81

Finding the Fourth Proportional to 708,100.11, 1,063,076.10 and 420,436.81

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Solution

The fourth proportional to 708,100.11, 1,063,076.10 and 420,436.81 is: 631,204.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,100.11 : 1,063,076.10 = 420,436.81 : x
  2. Step 2: Convert to fraction form
    708,100.11/1,063,076.10 = 420,436.81/x
  3. Step 3: Cross multiply
    708,100.11x = 1,063,076.10 × 420,436.81
  4. Step 4: Simplify right side
    708,100.11x = 446,956,324,023.45
  5. Step 5: Solve for x
    x = 446,956,324,023.45/708,100.11
  6. Step 6: Final answer
    x = 631,204.99

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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.