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Finding the Fourth Proportional to 630,650.50, 870,316.14 and 344,188.96

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Solution

The fourth proportional to 630,650.50, 870,316.14 and 344,188.96 is: 474,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,650.50 : 870,316.14 = 344,188.96 : x
  2. Step 2: Convert to fraction form
    630,650.50/870,316.14 = 344,188.96/x
  3. Step 3: Cross multiply
    630,650.50x = 870,316.14 × 344,188.96
  4. Step 4: Simplify right side
    630,650.50x = 299,553,207,097.81
  5. Step 5: Solve for x
    x = 299,553,207,097.81/630,650.50
  6. Step 6: Final answer
    x = 474,990.83

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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.