Home / 748,628.20-1,122,942.30-299,126.80

Finding the Fourth Proportional to 748,628.20, 1,122,942.30 and 299,126.80

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Solution

The fourth proportional to 748,628.20, 1,122,942.30 and 299,126.80 is: 448,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,628.20 : 1,122,942.30 = 299,126.80 : x
  2. Step 2: Convert to fraction form
    748,628.20/1,122,942.30 = 299,126.80/x
  3. Step 3: Cross multiply
    748,628.20x = 1,122,942.30 × 299,126.80
  4. Step 4: Simplify right side
    748,628.20x = 335,902,136,783.64
  5. Step 5: Solve for x
    x = 335,902,136,783.64/748,628.20
  6. Step 6: Final answer
    x = 448,690.20

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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.