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Finding the Fourth Proportional to 1,019.29, 1,406.36 and 593.99

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Solution

The fourth proportional to 1,019.29, 1,406.36 and 593.99 is: 819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019.29 : 1,406.36 = 593.99 : x
  2. Step 2: Convert to fraction form
    1,019.29/1,406.36 = 593.99/x
  3. Step 3: Cross multiply
    1,019.29x = 1,406.36 × 593.99
  4. Step 4: Simplify right side
    1,019.29x = 835,356.74
  5. Step 5: Solve for x
    x = 835,356.74/1,019.29
  6. Step 6: Final answer
    x = 819.55

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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.