Home / 749,259.40-1,123,889.10-275,846.80

Finding the Fourth Proportional to 749,259.40, 1,123,889.10 and 275,846.80

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Solution

The fourth proportional to 749,259.40, 1,123,889.10 and 275,846.80 is: 413,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,259.40 : 1,123,889.10 = 275,846.80 : x
  2. Step 2: Convert to fraction form
    749,259.40/1,123,889.10 = 275,846.80/x
  3. Step 3: Cross multiply
    749,259.40x = 1,123,889.10 × 275,846.80
  4. Step 4: Simplify right side
    749,259.40x = 310,021,211,789.88
  5. Step 5: Solve for x
    x = 310,021,211,789.88/749,259.40
  6. Step 6: Final answer
    x = 413,770.20

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Half scale
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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.