Home / 749,310.40-1,123,965.60-275,897.80

Finding the Fourth Proportional to 749,310.40, 1,123,965.60 and 275,897.80

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Solution

The fourth proportional to 749,310.40, 1,123,965.60 and 275,897.80 is: 413,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,310.40 : 1,123,965.60 = 275,897.80 : x
  2. Step 2: Convert to fraction form
    749,310.40/1,123,965.60 = 275,897.80/x
  3. Step 3: Cross multiply
    749,310.40x = 1,123,965.60 × 275,897.80
  4. Step 4: Simplify right side
    749,310.40x = 310,099,636,315.68
  5. Step 5: Solve for x
    x = 310,099,636,315.68/749,310.40
  6. Step 6: Final answer
    x = 413,846.70

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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.