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Finding the Fourth Proportional to 635,369.40, 876,752.64 and 348,883.20

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Solution

The fourth proportional to 635,369.40, 876,752.64 and 348,883.20 is: 481,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,369.40 : 876,752.64 = 348,883.20 : x
  2. Step 2: Convert to fraction form
    635,369.40/876,752.64 = 348,883.20/x
  3. Step 3: Cross multiply
    635,369.40x = 876,752.64 × 348,883.20
  4. Step 4: Simplify right side
    635,369.40x = 305,884,266,651.65
  5. Step 5: Solve for x
    x = 305,884,266,651.65/635,369.40
  6. Step 6: Final answer
    x = 481,427.44

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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.