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Finding the Fourth Proportional to 630,296.73, 869,523.48 and 371,998.44

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Solution

The fourth proportional to 630,296.73, 869,523.48 and 371,998.44 is: 513,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,296.73 : 869,523.48 = 371,998.44 : x
  2. Step 2: Convert to fraction form
    630,296.73/869,523.48 = 371,998.44/x
  3. Step 3: Cross multiply
    630,296.73x = 869,523.48 × 371,998.44
  4. Step 4: Simplify right side
    630,296.73x = 323,461,378,103.37
  5. Step 5: Solve for x
    x = 323,461,378,103.37/630,296.73
  6. Step 6: Final answer
    x = 513,189.05

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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.