Home / 648,326.43-895,164.62-419,019.48

Finding the Fourth Proportional to 648,326.43, 895,164.62 and 419,019.48

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Solution

The fourth proportional to 648,326.43, 895,164.62 and 419,019.48 is: 578,553.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,326.43 : 895,164.62 = 419,019.48 : x
  2. Step 2: Convert to fraction form
    648,326.43/895,164.62 = 419,019.48/x
  3. Step 3: Cross multiply
    648,326.43x = 895,164.62 × 419,019.48
  4. Step 4: Simplify right side
    648,326.43x = 375,091,411,491.70
  5. Step 5: Solve for x
    x = 375,091,411,491.70/648,326.43
  6. Step 6: Final answer
    x = 578,553.32

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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.