Home / 501,780.45-693,031.71-330,464.22

Finding the Fourth Proportional to 501,780.45, 693,031.71 and 330,464.22

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Solution

The fourth proportional to 501,780.45, 693,031.71 and 330,464.22 is: 456,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,780.45 : 693,031.71 = 330,464.22 : x
  2. Step 2: Convert to fraction form
    501,780.45/693,031.71 = 330,464.22/x
  3. Step 3: Cross multiply
    501,780.45x = 693,031.71 × 330,464.22
  4. Step 4: Simplify right side
    501,780.45x = 229,022,183,480.42
  5. Step 5: Solve for x
    x = 229,022,183,480.42/501,780.45
  6. Step 6: Final answer
    x = 456,419.10

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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.