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Finding the Fourth Proportional to 630,635.91, 870,296.04 and 344,174.46

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Solution

The fourth proportional to 630,635.91, 870,296.04 and 344,174.46 is: 474,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,635.91 : 870,296.04 = 344,174.46 : x
  2. Step 2: Convert to fraction form
    630,635.91/870,296.04 = 344,174.46/x
  3. Step 3: Cross multiply
    630,635.91x = 870,296.04 × 344,174.46
  4. Step 4: Simplify right side
    630,635.91x = 299,533,669,607.14
  5. Step 5: Solve for x
    x = 299,533,669,607.14/630,635.91
  6. Step 6: Final answer
    x = 474,970.84

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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.