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Finding the Fourth Proportional to 554.52, 828.02 and 503.40

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Solution

The fourth proportional to 554.52, 828.02 and 503.40 is: 751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.52 : 828.02 = 503.40 : x
  2. Step 2: Convert to fraction form
    554.52/828.02 = 503.40/x
  3. Step 3: Cross multiply
    554.52x = 828.02 × 503.40
  4. Step 4: Simplify right side
    554.52x = 416,822.75
  5. Step 5: Solve for x
    x = 416,822.75/554.52
  6. Step 6: Final answer
    x = 751.68

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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.