Home / 869,955.15-1,305,265.32-491,303.43

Finding the Fourth Proportional to 869,955.15, 1,305,265.32 and 491,303.43

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Solution

The fourth proportional to 869,955.15, 1,305,265.32 and 491,303.43 is: 737,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,955.15 : 1,305,265.32 = 491,303.43 : x
  2. Step 2: Convert to fraction form
    869,955.15/1,305,265.32 = 491,303.43/x
  3. Step 3: Cross multiply
    869,955.15x = 1,305,265.32 × 491,303.43
  4. Step 4: Simplify right side
    869,955.15x = 641,281,328,776.05
  5. Step 5: Solve for x
    x = 641,281,328,776.05/869,955.15
  6. Step 6: Final answer
    x = 737,142.98

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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.