Home / 774,142.76-1,160,742.56-347,595.76

Finding the Fourth Proportional to 774,142.76, 1,160,742.56 and 347,595.76

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Solution

The fourth proportional to 774,142.76, 1,160,742.56 and 347,595.76 is: 521,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,142.76 : 1,160,742.56 = 347,595.76 : x
  2. Step 2: Convert to fraction form
    774,142.76/1,160,742.56 = 347,595.76/x
  3. Step 3: Cross multiply
    774,142.76x = 1,160,742.56 × 347,595.76
  4. Step 4: Simplify right side
    774,142.76x = 403,469,192,307.55
  5. Step 5: Solve for x
    x = 403,469,192,307.55/774,142.76
  6. Step 6: Final answer
    x = 521,181.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.