Home / 748,846.80-1,123,270.20-630,311.40

Finding the Fourth Proportional to 748,846.80, 1,123,270.20 and 630,311.40

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Solution

The fourth proportional to 748,846.80, 1,123,270.20 and 630,311.40 is: 945,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,846.80 : 1,123,270.20 = 630,311.40 : x
  2. Step 2: Convert to fraction form
    748,846.80/1,123,270.20 = 630,311.40/x
  3. Step 3: Cross multiply
    748,846.80x = 1,123,270.20 × 630,311.40
  4. Step 4: Simplify right side
    748,846.80x = 708,010,012,340.28
  5. Step 5: Solve for x
    x = 708,010,012,340.28/748,846.80
  6. Step 6: Final answer
    x = 945,467.10

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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.