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Finding the Fourth Proportional to 635,468.81, 876,945.93 and 348,988.89

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Solution

The fourth proportional to 635,468.81, 876,945.93 and 348,988.89 is: 481,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,468.81 : 876,945.93 = 348,988.89 : x
  2. Step 2: Convert to fraction form
    635,468.81/876,945.93 = 348,988.89/x
  3. Step 3: Cross multiply
    635,468.81x = 876,945.93 × 348,988.89
  4. Step 4: Simplify right side
    635,468.81x = 306,044,386,700.72
  5. Step 5: Solve for x
    x = 306,044,386,700.72/635,468.81
  6. Step 6: Final answer
    x = 481,604.10

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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.