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Finding the Fourth Proportional to 432,044.70, 646,933.05 and 304,998.90

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Solution

The fourth proportional to 432,044.70, 646,933.05 and 304,998.90 is: 456,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,044.70 : 646,933.05 = 304,998.90 : x
  2. Step 2: Convert to fraction form
    432,044.70/646,933.05 = 304,998.90/x
  3. Step 3: Cross multiply
    432,044.70x = 646,933.05 × 304,998.90
  4. Step 4: Simplify right side
    432,044.70x = 197,313,868,623.65
  5. Step 5: Solve for x
    x = 197,313,868,623.65/432,044.70
  6. Step 6: Final answer
    x = 456,697.81

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1.5x scale

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.