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Finding the Fourth Proportional to 1,203.94, 1,806.62 and 510.56

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Solution

The fourth proportional to 1,203.94, 1,806.62 and 510.56 is: 766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.94 : 1,806.62 = 510.56 : x
  2. Step 2: Convert to fraction form
    1,203.94/1,806.62 = 510.56/x
  3. Step 3: Cross multiply
    1,203.94x = 1,806.62 × 510.56
  4. Step 4: Simplify right side
    1,203.94x = 922,387.91
  5. Step 5: Solve for x
    x = 922,387.91/1,203.94
  6. Step 6: Final answer
    x = 766.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.