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Finding the Fourth Proportional to 716.83, 1,075.38 and 473.56

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Solution

The fourth proportional to 716.83, 1,075.38 and 473.56 is: 710.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.83 : 1,075.38 = 473.56 : x
  2. Step 2: Convert to fraction form
    716.83/1,075.38 = 473.56/x
  3. Step 3: Cross multiply
    716.83x = 1,075.38 × 473.56
  4. Step 4: Simplify right side
    716.83x = 509,256.95
  5. Step 5: Solve for x
    x = 509,256.95/716.83
  6. Step 6: Final answer
    x = 710.43

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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.