Home / 839,310.50-1,258,069.23-478,704.87

Finding the Fourth Proportional to 839,310.50, 1,258,069.23 and 478,704.87

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Solution

The fourth proportional to 839,310.50, 1,258,069.23 and 478,704.87 is: 717,545.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,310.50 : 1,258,069.23 = 478,704.87 : x
  2. Step 2: Convert to fraction form
    839,310.50/1,258,069.23 = 478,704.87/x
  3. Step 3: Cross multiply
    839,310.50x = 1,258,069.23 × 478,704.87
  4. Step 4: Simplify right side
    839,310.50x = 602,243,867,198.15
  5. Step 5: Solve for x
    x = 602,243,867,198.15/839,310.50
  6. Step 6: Final answer
    x = 717,545.97

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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.