Home / 862,589.58-1,190,378.49-500,228.58

Finding the Fourth Proportional to 862,589.58, 1,190,378.49 and 500,228.58

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Solution

The fourth proportional to 862,589.58, 1,190,378.49 and 500,228.58 is: 690,318.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,589.58 : 1,190,378.49 = 500,228.58 : x
  2. Step 2: Convert to fraction form
    862,589.58/1,190,378.49 = 500,228.58/x
  3. Step 3: Cross multiply
    862,589.58x = 1,190,378.49 × 500,228.58
  4. Step 4: Simplify right side
    862,589.58x = 595,461,341,715.24
  5. Step 5: Solve for x
    x = 595,461,341,715.24/862,589.58
  6. Step 6: Final answer
    x = 690,318.26

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Double scale
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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.