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Finding the Fourth Proportional to 692.95, 955.90 and 526.87

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Solution

The fourth proportional to 692.95, 955.90 and 526.87 is: 726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.95 : 955.90 = 526.87 : x
  2. Step 2: Convert to fraction form
    692.95/955.90 = 526.87/x
  3. Step 3: Cross multiply
    692.95x = 955.90 × 526.87
  4. Step 4: Simplify right side
    692.95x = 503,635.03
  5. Step 5: Solve for x
    x = 503,635.03/692.95
  6. Step 6: Final answer
    x = 726.80

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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.