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Finding the Fourth Proportional to 648,358.92, 894,698.91 and 361,897.47

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Solution

The fourth proportional to 648,358.92, 894,698.91 and 361,897.47 is: 499,398.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,358.92 : 894,698.91 = 361,897.47 : x
  2. Step 2: Convert to fraction form
    648,358.92/894,698.91 = 361,897.47/x
  3. Step 3: Cross multiply
    648,358.92x = 894,698.91 × 361,897.47
  4. Step 4: Simplify right side
    648,358.92x = 323,789,271,940.76
  5. Step 5: Solve for x
    x = 323,789,271,940.76/648,358.92
  6. Step 6: Final answer
    x = 499,398.19

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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.