Home / 757,123.56-1,136,190.38-392,721.01

Finding the Fourth Proportional to 757,123.56, 1,136,190.38 and 392,721.01

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Solution

The fourth proportional to 757,123.56, 1,136,190.38 and 392,721.01 is: 589,343.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,123.56 : 1,136,190.38 = 392,721.01 : x
  2. Step 2: Convert to fraction form
    757,123.56/1,136,190.38 = 392,721.01/x
  3. Step 3: Cross multiply
    757,123.56x = 1,136,190.38 × 392,721.01
  4. Step 4: Simplify right side
    757,123.56x = 446,205,831,622.28
  5. Step 5: Solve for x
    x = 446,205,831,622.28/757,123.56
  6. Step 6: Final answer
    x = 589,343.48

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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.