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Finding the Fourth Proportional to 1,015.61, 1,401.47 and 596.23

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Solution

The fourth proportional to 1,015.61, 1,401.47 and 596.23 is: 822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.61 : 1,401.47 = 596.23 : x
  2. Step 2: Convert to fraction form
    1,015.61/1,401.47 = 596.23/x
  3. Step 3: Cross multiply
    1,015.61x = 1,401.47 × 596.23
  4. Step 4: Simplify right side
    1,015.61x = 835,594.21
  5. Step 5: Solve for x
    x = 835,594.21/1,015.61
  6. Step 6: Final answer
    x = 822.76

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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.