Home / 826,947.80-1,240,421.70-227,907.80

Finding the Fourth Proportional to 826,947.80, 1,240,421.70 and 227,907.80

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Solution

The fourth proportional to 826,947.80, 1,240,421.70 and 227,907.80 is: 341,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,947.80 : 1,240,421.70 = 227,907.80 : x
  2. Step 2: Convert to fraction form
    826,947.80/1,240,421.70 = 227,907.80/x
  3. Step 3: Cross multiply
    826,947.80x = 1,240,421.70 × 227,907.80
  4. Step 4: Simplify right side
    826,947.80x = 282,701,780,719.26
  5. Step 5: Solve for x
    x = 282,701,780,719.26/826,947.80
  6. Step 6: Final answer
    x = 341,861.70

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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.