Home / 816,975.72-1,226,611.76-417,902.90

Finding the Fourth Proportional to 816,975.72, 1,226,611.76 and 417,902.90

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Solution

The fourth proportional to 816,975.72, 1,226,611.76 and 417,902.90 is: 627,441.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,975.72 : 1,226,611.76 = 417,902.90 : x
  2. Step 2: Convert to fraction form
    816,975.72/1,226,611.76 = 417,902.90/x
  3. Step 3: Cross multiply
    816,975.72x = 1,226,611.76 × 417,902.90
  4. Step 4: Simplify right side
    816,975.72x = 512,604,603,455.53
  5. Step 5: Solve for x
    x = 512,604,603,455.53/816,975.72
  6. Step 6: Final answer
    x = 627,441.66

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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.