Home / 748,340.21-1,122,953.18-275,357.72

Finding the Fourth Proportional to 748,340.21, 1,122,953.18 and 275,357.72

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Solution

The fourth proportional to 748,340.21, 1,122,953.18 and 275,357.72 is: 413,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,340.21 : 1,122,953.18 = 275,357.72 : x
  2. Step 2: Convert to fraction form
    748,340.21/1,122,953.18 = 275,357.72/x
  3. Step 3: Cross multiply
    748,340.21x = 1,122,953.18 × 275,357.72
  4. Step 4: Simplify right side
    748,340.21x = 309,213,827,311.55
  5. Step 5: Solve for x
    x = 309,213,827,311.55/748,340.21
  6. Step 6: Final answer
    x = 413,199.54

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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.