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Finding the Fourth Proportional to 649,046.82, 900,266.96 and 631,784.10

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Solution

The fourth proportional to 649,046.82, 900,266.96 and 631,784.10 is: 876,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,046.82 : 900,266.96 = 631,784.10 : x
  2. Step 2: Convert to fraction form
    649,046.82/900,266.96 = 631,784.10/x
  3. Step 3: Cross multiply
    649,046.82x = 900,266.96 × 631,784.10
  4. Step 4: Simplify right side
    649,046.82x = 568,774,347,924.42
  5. Step 5: Solve for x
    x = 568,774,347,924.42/649,046.82
  6. Step 6: Final answer
    x = 876,322.52

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.