Home / 869,114.65-1,303,671.98-820,125.85

Finding the Fourth Proportional to 869,114.65, 1,303,671.98 and 820,125.85

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Solution

The fourth proportional to 869,114.65, 1,303,671.98 and 820,125.85 is: 1,230,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,114.65 : 1,303,671.98 = 820,125.85 : x
  2. Step 2: Convert to fraction form
    869,114.65/1,303,671.98 = 820,125.85/x
  3. Step 3: Cross multiply
    869,114.65x = 1,303,671.98 × 820,125.85
  4. Step 4: Simplify right side
    869,114.65x = 1,069,175,086,618.05
  5. Step 5: Solve for x
    x = 1,069,175,086,618.05/869,114.65
  6. Step 6: Final answer
    x = 1,230,188.78

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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.