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Finding the Fourth Proportional to 635,151.78, 876,513.15 and 348,674.22

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Solution

The fourth proportional to 635,151.78, 876,513.15 and 348,674.22 is: 481,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,151.78 : 876,513.15 = 348,674.22 : x
  2. Step 2: Convert to fraction form
    635,151.78/876,513.15 = 348,674.22/x
  3. Step 3: Cross multiply
    635,151.78x = 876,513.15 × 348,674.22
  4. Step 4: Simplify right side
    635,151.78x = 305,617,538,895.99
  5. Step 5: Solve for x
    x = 305,617,538,895.99/635,151.78
  6. Step 6: Final answer
    x = 481,172.45

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1.5x scale

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.