Home / 862,712.72-1,190,548.29-500,351.46

Finding the Fourth Proportional to 862,712.72, 1,190,548.29 and 500,351.46

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Solution

The fourth proportional to 862,712.72, 1,190,548.29 and 500,351.46 is: 690,487.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,712.72 : 1,190,548.29 = 500,351.46 : x
  2. Step 2: Convert to fraction form
    862,712.72/1,190,548.29 = 500,351.46/x
  3. Step 3: Cross multiply
    862,712.72x = 1,190,548.29 × 500,351.46
  4. Step 4: Simplify right side
    862,712.72x = 595,692,569,149.26
  5. Step 5: Solve for x
    x = 595,692,569,149.26/862,712.72
  6. Step 6: Final answer
    x = 690,487.75

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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.