Home / 752,985.56-1,129,146.78-353,739.80

Finding the Fourth Proportional to 752,985.56, 1,129,146.78 and 353,739.80

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Solution

The fourth proportional to 752,985.56, 1,129,146.78 and 353,739.80 is: 530,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,985.56 : 1,129,146.78 = 353,739.80 : x
  2. Step 2: Convert to fraction form
    752,985.56/1,129,146.78 = 353,739.80/x
  3. Step 3: Cross multiply
    752,985.56x = 1,129,146.78 × 353,739.80
  4. Step 4: Simplify right side
    752,985.56x = 399,424,156,127.84
  5. Step 5: Solve for x
    x = 399,424,156,127.84/752,985.56
  6. Step 6: Final answer
    x = 530,453.94

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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.