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Finding the Fourth Proportional to 1,062.92, 1,594.36 and 438.08

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Solution

The fourth proportional to 1,062.92, 1,594.36 and 438.08 is: 657.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.92 : 1,594.36 = 438.08 : x
  2. Step 2: Convert to fraction form
    1,062.92/1,594.36 = 438.08/x
  3. Step 3: Cross multiply
    1,062.92x = 1,594.36 × 438.08
  4. Step 4: Simplify right side
    1,062.92x = 698,457.23
  5. Step 5: Solve for x
    x = 698,457.23/1,062.92
  6. Step 6: Final answer
    x = 657.11

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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.