Home / 711,885.90-1,067,828.85-687,002.70

Finding the Fourth Proportional to 711,885.90, 1,067,828.85 and 687,002.70

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Solution

The fourth proportional to 711,885.90, 1,067,828.85 and 687,002.70 is: 1,030,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,885.90 : 1,067,828.85 = 687,002.70 : x
  2. Step 2: Convert to fraction form
    711,885.90/1,067,828.85 = 687,002.70/x
  3. Step 3: Cross multiply
    711,885.90x = 1,067,828.85 × 687,002.70
  4. Step 4: Simplify right side
    711,885.90x = 733,601,303,087.90
  5. Step 5: Solve for x
    x = 733,601,303,087.90/711,885.90
  6. Step 6: Final answer
    x = 1,030,504.05

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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.