Home / 862,939.72-1,190,592.90-500,291.21

Finding the Fourth Proportional to 862,939.72, 1,190,592.90 and 500,291.21

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Solution

The fourth proportional to 862,939.72, 1,190,592.90 and 500,291.21 is: 690,248.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,939.72 : 1,190,592.90 = 500,291.21 : x
  2. Step 2: Convert to fraction form
    862,939.72/1,190,592.90 = 500,291.21/x
  3. Step 3: Cross multiply
    862,939.72x = 1,190,592.90 × 500,291.21
  4. Step 4: Simplify right side
    862,939.72x = 595,643,162,558.41
  5. Step 5: Solve for x
    x = 595,643,162,558.41/862,939.72
  6. Step 6: Final answer
    x = 690,248.87

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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.