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Finding the Fourth Proportional to 885.67, 1,222.56 and 536.36

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Solution

The fourth proportional to 885.67, 1,222.56 and 536.36 is: 740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.67 : 1,222.56 = 536.36 : x
  2. Step 2: Convert to fraction form
    885.67/1,222.56 = 536.36/x
  3. Step 3: Cross multiply
    885.67x = 1,222.56 × 536.36
  4. Step 4: Simplify right side
    885.67x = 655,726.17
  5. Step 5: Solve for x
    x = 655,726.17/885.67
  6. Step 6: Final answer
    x = 740.38

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