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Finding the Fourth Proportional to 630,967.35, 870,730.39 and 344,487.44

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Solution

The fourth proportional to 630,967.35, 870,730.39 and 344,487.44 is: 475,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,967.35 : 870,730.39 = 344,487.44 : x
  2. Step 2: Convert to fraction form
    630,967.35/870,730.39 = 344,487.44/x
  3. Step 3: Cross multiply
    630,967.35x = 870,730.39 × 344,487.44
  4. Step 4: Simplify right side
    630,967.35x = 299,955,682,981.30
  5. Step 5: Solve for x
    x = 299,955,682,981.30/630,967.35
  6. Step 6: Final answer
    x = 475,390.18

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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.