Home / 731,266.80-1,096,900.20-257,890.65

Finding the Fourth Proportional to 731,266.80, 1,096,900.20 and 257,890.65

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Solution

The fourth proportional to 731,266.80, 1,096,900.20 and 257,890.65 is: 386,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,266.80 : 1,096,900.20 = 257,890.65 : x
  2. Step 2: Convert to fraction form
    731,266.80/1,096,900.20 = 257,890.65/x
  3. Step 3: Cross multiply
    731,266.80x = 1,096,900.20 × 257,890.65
  4. Step 4: Simplify right side
    731,266.80x = 282,880,305,563.13
  5. Step 5: Solve for x
    x = 282,880,305,563.13/731,266.80
  6. Step 6: Final answer
    x = 386,835.98

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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.