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Finding the Fourth Proportional to 1,065.52, 1,606.20 and 973.25

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Solution

The fourth proportional to 1,065.52, 1,606.20 and 973.25 is: 1,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.52 : 1,606.20 = 973.25 : x
  2. Step 2: Convert to fraction form
    1,065.52/1,606.20 = 973.25/x
  3. Step 3: Cross multiply
    1,065.52x = 1,606.20 × 973.25
  4. Step 4: Simplify right side
    1,065.52x = 1,563,228.49
  5. Step 5: Solve for x
    x = 1,563,228.49/1,065.52
  6. Step 6: Final answer
    x = 1,467.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.