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Finding the Fourth Proportional to 745.49, 1,113.95 and 568.82

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Solution

The fourth proportional to 745.49, 1,113.95 and 568.82 is: 849.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    745.49 : 1,113.95 = 568.82 : x
  2. Step 2: Convert to fraction form
    745.49/1,113.95 = 568.82/x
  3. Step 3: Cross multiply
    745.49x = 1,113.95 × 568.82
  4. Step 4: Simplify right side
    745.49x = 633,637.04
  5. Step 5: Solve for x
    x = 633,637.04/745.49
  6. Step 6: Final answer
    x = 849.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.