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Finding the Fourth Proportional to 630,664.50, 870,335.46 and 344,202.96

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Solution

The fourth proportional to 630,664.50, 870,335.46 and 344,202.96 is: 475,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,664.50 : 870,335.46 = 344,202.96 : x
  2. Step 2: Convert to fraction form
    630,664.50/870,335.46 = 344,202.96/x
  3. Step 3: Cross multiply
    630,664.50x = 870,335.46 × 344,202.96
  4. Step 4: Simplify right side
    630,664.50x = 299,572,041,524.96
  5. Step 5: Solve for x
    x = 299,572,041,524.96/630,664.50
  6. Step 6: Final answer
    x = 475,010.15

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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.