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Finding the Fourth Proportional to 804.76, 1,110.66 and 510

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Solution

The fourth proportional to 804.76, 1,110.66 and 510 is: 703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.76 : 1,110.66 = 510 : x
  2. Step 2: Convert to fraction form
    804.76/1,110.66 = 510/x
  3. Step 3: Cross multiply
    804.76x = 1,110.66 × 510
  4. Step 4: Simplify right side
    804.76x = 566,436.60
  5. Step 5: Solve for x
    x = 566,436.60/804.76
  6. Step 6: Final answer
    x = 703.86

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Double scale
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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.