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Finding the Fourth Proportional to 888.48, 1,226.28 and 590.85

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Solution

The fourth proportional to 888.48, 1,226.28 and 590.85 is: 815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.48 : 1,226.28 = 590.85 : x
  2. Step 2: Convert to fraction form
    888.48/1,226.28 = 590.85/x
  3. Step 3: Cross multiply
    888.48x = 1,226.28 × 590.85
  4. Step 4: Simplify right side
    888.48x = 724,547.54
  5. Step 5: Solve for x
    x = 724,547.54/888.48
  6. Step 6: Final answer
    x = 815.49

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1.5x scale

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.