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Finding the Fourth Proportional to 900.02, 1,347.13 and 482.51

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Solution

The fourth proportional to 900.02, 1,347.13 and 482.51 is: 722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    900.02 : 1,347.13 = 482.51 : x
  2. Step 2: Convert to fraction form
    900.02/1,347.13 = 482.51/x
  3. Step 3: Cross multiply
    900.02x = 1,347.13 × 482.51
  4. Step 4: Simplify right side
    900.02x = 650,007.67
  5. Step 5: Solve for x
    x = 650,007.67/900.02
  6. Step 6: Final answer
    x = 722.21

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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.