Home / 748,379.58-1,123,012.29-275,397.12

Finding the Fourth Proportional to 748,379.58, 1,123,012.29 and 275,397.12

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Solution

The fourth proportional to 748,379.58, 1,123,012.29 and 275,397.12 is: 413,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,379.58 : 1,123,012.29 = 275,397.12 : x
  2. Step 2: Convert to fraction form
    748,379.58/1,123,012.29 = 275,397.12/x
  3. Step 3: Cross multiply
    748,379.58x = 1,123,012.29 × 275,397.12
  4. Step 4: Simplify right side
    748,379.58x = 309,274,350,390.61
  5. Step 5: Solve for x
    x = 309,274,350,390.61/748,379.58
  6. Step 6: Final answer
    x = 413,258.67

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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.