Home / 734,855.40-1,101,116.70-485,245.80

Finding the Fourth Proportional to 734,855.40, 1,101,116.70 and 485,245.80

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Solution

The fourth proportional to 734,855.40, 1,101,116.70 and 485,245.80 is: 727,098.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,855.40 : 1,101,116.70 = 485,245.80 : x
  2. Step 2: Convert to fraction form
    734,855.40/1,101,116.70 = 485,245.80/x
  3. Step 3: Cross multiply
    734,855.40x = 1,101,116.70 × 485,245.80
  4. Step 4: Simplify right side
    734,855.40x = 534,312,253,984.86
  5. Step 5: Solve for x
    x = 534,312,253,984.86/734,855.40
  6. Step 6: Final answer
    x = 727,098.49

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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.