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Finding the Fourth Proportional to 807.03, 1,112.54 and 573.75

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Solution

The fourth proportional to 807.03, 1,112.54 and 573.75 is: 790.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    807.03 : 1,112.54 = 573.75 : x
  2. Step 2: Convert to fraction form
    807.03/1,112.54 = 573.75/x
  3. Step 3: Cross multiply
    807.03x = 1,112.54 × 573.75
  4. Step 4: Simplify right side
    807.03x = 638,316.96
  5. Step 5: Solve for x
    x = 638,316.96/807.03
  6. Step 6: Final answer
    x = 790.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.