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Finding the Fourth Proportional to 699,855.35, 965,496.17 and 427,934.57

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Solution

The fourth proportional to 699,855.35, 965,496.17 and 427,934.57 is: 590,363.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,855.35 : 965,496.17 = 427,934.57 : x
  2. Step 2: Convert to fraction form
    699,855.35/965,496.17 = 427,934.57/x
  3. Step 3: Cross multiply
    699,855.35x = 965,496.17 × 427,934.57
  4. Step 4: Simplify right side
    699,855.35x = 413,169,184,587.95
  5. Step 5: Solve for x
    x = 413,169,184,587.95/699,855.35
  6. Step 6: Final answer
    x = 590,363.69

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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.