Home / 738,361.16-1,018,939.02-398,829.68

Finding the Fourth Proportional to 738,361.16, 1,018,939.02 and 398,829.68

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Solution

The fourth proportional to 738,361.16, 1,018,939.02 and 398,829.68 is: 550,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,361.16 : 1,018,939.02 = 398,829.68 : x
  2. Step 2: Convert to fraction form
    738,361.16/1,018,939.02 = 398,829.68/x
  3. Step 3: Cross multiply
    738,361.16x = 1,018,939.02 × 398,829.68
  4. Step 4: Simplify right side
    738,361.16x = 406,383,123,286.11
  5. Step 5: Solve for x
    x = 406,383,123,286.11/738,361.16
  6. Step 6: Final answer
    x = 550,385.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.