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Finding the Fourth Proportional to 804.89, 1,110.76 and 473.39

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Solution

The fourth proportional to 804.89, 1,110.76 and 473.39 is: 653.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.89 : 1,110.76 = 473.39 : x
  2. Step 2: Convert to fraction form
    804.89/1,110.76 = 473.39/x
  3. Step 3: Cross multiply
    804.89x = 1,110.76 × 473.39
  4. Step 4: Simplify right side
    804.89x = 525,829.02
  5. Step 5: Solve for x
    x = 525,829.02/804.89
  6. Step 6: Final answer
    x = 653.30

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1.5x scale

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.