Home / 674,311.20-1,011,466.80-274,746.30

Finding the Fourth Proportional to 674,311.20, 1,011,466.80 and 274,746.30

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Solution

The fourth proportional to 674,311.20, 1,011,466.80 and 274,746.30 is: 412,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,311.20 : 1,011,466.80 = 274,746.30 : x
  2. Step 2: Convert to fraction form
    674,311.20/1,011,466.80 = 274,746.30/x
  3. Step 3: Cross multiply
    674,311.20x = 1,011,466.80 × 274,746.30
  4. Step 4: Simplify right side
    674,311.20x = 277,896,760,872.84
  5. Step 5: Solve for x
    x = 277,896,760,872.84/674,311.20
  6. Step 6: Final answer
    x = 412,119.45

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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.