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Finding the Fourth Proportional to 887.88, 1,222.02 and 854.76

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Solution

The fourth proportional to 887.88, 1,222.02 and 854.76 is: 1,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.88 : 1,222.02 = 854.76 : x
  2. Step 2: Convert to fraction form
    887.88/1,222.02 = 854.76/x
  3. Step 3: Cross multiply
    887.88x = 1,222.02 × 854.76
  4. Step 4: Simplify right side
    887.88x = 1,044,533.82
  5. Step 5: Solve for x
    x = 1,044,533.82/887.88
  6. Step 6: Final answer
    x = 1,176.44

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Find fourth proportional to 443.94, 611.01 and 427.38
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.