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Finding the Fourth Proportional to 1,074.51, 1,482.84 and 602.43

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Solution

The fourth proportional to 1,074.51, 1,482.84 and 602.43 is: 831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.51 : 1,482.84 = 602.43 : x
  2. Step 2: Convert to fraction form
    1,074.51/1,482.84 = 602.43/x
  3. Step 3: Cross multiply
    1,074.51x = 1,482.84 × 602.43
  4. Step 4: Simplify right side
    1,074.51x = 893,307.30
  5. Step 5: Solve for x
    x = 893,307.30/1,074.51
  6. Step 6: Final answer
    x = 831.36

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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.