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Finding the Fourth Proportional to 1,227.61, 1,842.19 and 497.19

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Solution

The fourth proportional to 1,227.61, 1,842.19 and 497.19 is: 746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.61 : 1,842.19 = 497.19 : x
  2. Step 2: Convert to fraction form
    1,227.61/1,842.19 = 497.19/x
  3. Step 3: Cross multiply
    1,227.61x = 1,842.19 × 497.19
  4. Step 4: Simplify right side
    1,227.61x = 915,915.96
  5. Step 5: Solve for x
    x = 915,915.96/1,227.61
  6. Step 6: Final answer
    x = 746.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.