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Finding the Fourth Proportional to 1,064.74, 1,595.66 and 804.53

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Solution

The fourth proportional to 1,064.74, 1,595.66 and 804.53 is: 1,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.74 : 1,595.66 = 804.53 : x
  2. Step 2: Convert to fraction form
    1,064.74/1,595.66 = 804.53/x
  3. Step 3: Cross multiply
    1,064.74x = 1,595.66 × 804.53
  4. Step 4: Simplify right side
    1,064.74x = 1,283,750.32
  5. Step 5: Solve for x
    x = 1,283,750.32/1,064.74
  6. Step 6: Final answer
    x = 1,205.69

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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.