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Finding the Fourth Proportional to 692.84, 955.86 and 430.94

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Solution

The fourth proportional to 692.84, 955.86 and 430.94 is: 594.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.84 : 955.86 = 430.94 : x
  2. Step 2: Convert to fraction form
    692.84/955.86 = 430.94/x
  3. Step 3: Cross multiply
    692.84x = 955.86 × 430.94
  4. Step 4: Simplify right side
    692.84x = 411,918.31
  5. Step 5: Solve for x
    x = 411,918.31/692.84
  6. Step 6: Final answer
    x = 594.54

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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.