Home / 862,589.95-1,190,379.01-500,228.96

Finding the Fourth Proportional to 862,589.95, 1,190,379.01 and 500,228.96

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Solution

The fourth proportional to 862,589.95, 1,190,379.01 and 500,228.96 is: 690,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,589.95 : 1,190,379.01 = 500,228.96 : x
  2. Step 2: Convert to fraction form
    862,589.95/1,190,379.01 = 500,228.96/x
  3. Step 3: Cross multiply
    862,589.95x = 1,190,379.01 × 500,228.96
  4. Step 4: Simplify right side
    862,589.95x = 595,462,046,975.66
  5. Step 5: Solve for x
    x = 595,462,046,975.66/862,589.95
  6. Step 6: Final answer
    x = 690,318.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.