Home / 1,383,121.02-2,074,608.09-423,576.30

Finding the Fourth Proportional to 1,383,121.02, 2,074,608.09 and 423,576.30

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Solution

The fourth proportional to 1,383,121.02, 2,074,608.09 and 423,576.30 is: 635,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,121.02 : 2,074,608.09 = 423,576.30 : x
  2. Step 2: Convert to fraction form
    1,383,121.02/2,074,608.09 = 423,576.30/x
  3. Step 3: Cross multiply
    1,383,121.02x = 2,074,608.09 × 423,576.30
  4. Step 4: Simplify right side
    1,383,121.02x = 878,754,818,712.27
  5. Step 5: Solve for x
    x = 878,754,818,712.27/1,383,121.02
  6. Step 6: Final answer
    x = 635,341.96

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Double scale
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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.