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Finding the Fourth Proportional to 894.77, 1,234.83 and 501.85

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Solution

The fourth proportional to 894.77, 1,234.83 and 501.85 is: 692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.77 : 1,234.83 = 501.85 : x
  2. Step 2: Convert to fraction form
    894.77/1,234.83 = 501.85/x
  3. Step 3: Cross multiply
    894.77x = 1,234.83 × 501.85
  4. Step 4: Simplify right side
    894.77x = 619,690.75
  5. Step 5: Solve for x
    x = 619,690.75/894.77
  6. Step 6: Final answer
    x = 692.57

Related Problems

Find fourth proportional to 447.38, 617.41 and 250.92
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.