Home / 432,043.20-646,930.80-304,997.40

Finding the Fourth Proportional to 432,043.20, 646,930.80 and 304,997.40

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Solution

The fourth proportional to 432,043.20, 646,930.80 and 304,997.40 is: 456,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,043.20 : 646,930.80 = 304,997.40 : x
  2. Step 2: Convert to fraction form
    432,043.20/646,930.80 = 304,997.40/x
  3. Step 3: Cross multiply
    432,043.20x = 646,930.80 × 304,997.40
  4. Step 4: Simplify right side
    432,043.20x = 197,312,211,979.92
  5. Step 5: Solve for x
    x = 197,312,211,979.92/432,043.20
  6. Step 6: Final answer
    x = 456,695.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.