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Finding the Fourth Proportional to 554.49, 826.65 and 492.53

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Solution

The fourth proportional to 554.49, 826.65 and 492.53 is: 734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.49 : 826.65 = 492.53 : x
  2. Step 2: Convert to fraction form
    554.49/826.65 = 492.53/x
  3. Step 3: Cross multiply
    554.49x = 826.65 × 492.53
  4. Step 4: Simplify right side
    554.49x = 407,145.79
  5. Step 5: Solve for x
    x = 407,145.79/554.49
  6. Step 6: Final answer
    x = 734.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.