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Finding the Fourth Proportional to 501,783.92, 693,036.52 and 330,467.72

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Solution

The fourth proportional to 501,783.92, 693,036.52 and 330,467.72 is: 456,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,783.92 : 693,036.52 = 330,467.72 : x
  2. Step 2: Convert to fraction form
    501,783.92/693,036.52 = 330,467.72/x
  3. Step 3: Cross multiply
    501,783.92x = 693,036.52 × 330,467.72
  4. Step 4: Simplify right side
    501,783.92x = 229,026,198,641.13
  5. Step 5: Solve for x
    x = 229,026,198,641.13/501,783.92
  6. Step 6: Final answer
    x = 456,423.95

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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.