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Finding the Fourth Proportional to 499,596.28, 748,730.09 and 432,723.28

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Solution

The fourth proportional to 499,596.28, 748,730.09 and 432,723.28 is: 648,509.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,596.28 : 748,730.09 = 432,723.28 : x
  2. Step 2: Convert to fraction form
    499,596.28/748,730.09 = 432,723.28/x
  3. Step 3: Cross multiply
    499,596.28x = 748,730.09 × 432,723.28
  4. Step 4: Simplify right side
    499,596.28x = 323,992,938,215.88
  5. Step 5: Solve for x
    x = 323,992,938,215.88/499,596.28
  6. Step 6: Final answer
    x = 648,509.51

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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.