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Finding the Fourth Proportional to 647,999.22, 894,239.49 and 361,519.40

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Solution

The fourth proportional to 647,999.22, 894,239.49 and 361,519.40 is: 498,897.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,999.22 : 894,239.49 = 361,519.40 : x
  2. Step 2: Convert to fraction form
    647,999.22/894,239.49 = 361,519.40/x
  3. Step 3: Cross multiply
    647,999.22x = 894,239.49 × 361,519.40
  4. Step 4: Simplify right side
    647,999.22x = 323,284,927,472.40
  5. Step 5: Solve for x
    x = 323,284,927,472.40/647,999.22
  6. Step 6: Final answer
    x = 498,897.09

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1.5x scale

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.