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Finding the Fourth Proportional to 1,225.05, 1,837.55 and 402.99

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Solution

The fourth proportional to 1,225.05, 1,837.55 and 402.99 is: 604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.05 : 1,837.55 = 402.99 : x
  2. Step 2: Convert to fraction form
    1,225.05/1,837.55 = 402.99/x
  3. Step 3: Cross multiply
    1,225.05x = 1,837.55 × 402.99
  4. Step 4: Simplify right side
    1,225.05x = 740,514.27
  5. Step 5: Solve for x
    x = 740,514.27/1,225.05
  6. Step 6: Final answer
    x = 604.48

Related Problems

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.