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Finding the Fourth Proportional to 1,003.06, 1,501.93 and 807.13

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Solution

The fourth proportional to 1,003.06, 1,501.93 and 807.13 is: 1,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003.06 : 1,501.93 = 807.13 : x
  2. Step 2: Convert to fraction form
    1,003.06/1,501.93 = 807.13/x
  3. Step 3: Cross multiply
    1,003.06x = 1,501.93 × 807.13
  4. Step 4: Simplify right side
    1,003.06x = 1,212,252.76
  5. Step 5: Solve for x
    x = 1,212,252.76/1,003.06
  6. Step 6: Final answer
    x = 1,208.55

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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.