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Finding the Fourth Proportional to 1,064.95, 1,597.11 and 479.62

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Solution

The fourth proportional to 1,064.95, 1,597.11 and 479.62 is: 719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.95 : 1,597.11 = 479.62 : x
  2. Step 2: Convert to fraction form
    1,064.95/1,597.11 = 479.62/x
  3. Step 3: Cross multiply
    1,064.95x = 1,597.11 × 479.62
  4. Step 4: Simplify right side
    1,064.95x = 766,005.90
  5. Step 5: Solve for x
    x = 766,005.90/1,064.95
  6. Step 6: Final answer
    x = 719.29

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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.