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Finding the Fourth Proportional to 804.95, 1,111.09 and 473.36

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Solution

The fourth proportional to 804.95, 1,111.09 and 473.36 is: 653.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.95 : 1,111.09 = 473.36 : x
  2. Step 2: Convert to fraction form
    804.95/1,111.09 = 473.36/x
  3. Step 3: Cross multiply
    804.95x = 1,111.09 × 473.36
  4. Step 4: Simplify right side
    804.95x = 525,945.56
  5. Step 5: Solve for x
    x = 525,945.56/804.95
  6. Step 6: Final answer
    x = 653.39

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Half scale
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Double scale
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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.