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Finding the Fourth Proportional to 615.29, 852.77 and 603.77

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Solution

The fourth proportional to 615.29, 852.77 and 603.77 is: 836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.29 : 852.77 = 603.77 : x
  2. Step 2: Convert to fraction form
    615.29/852.77 = 603.77/x
  3. Step 3: Cross multiply
    615.29x = 852.77 × 603.77
  4. Step 4: Simplify right side
    615.29x = 514,877.57
  5. Step 5: Solve for x
    x = 514,877.57/615.29
  6. Step 6: Final answer
    x = 836.80

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.