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Finding the Fourth Proportional to 511,328.10, 766,992.15 and 432,596.10

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Solution

The fourth proportional to 511,328.10, 766,992.15 and 432,596.10 is: 648,894.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,328.10 : 766,992.15 = 432,596.10 : x
  2. Step 2: Convert to fraction form
    511,328.10/766,992.15 = 432,596.10/x
  3. Step 3: Cross multiply
    511,328.10x = 766,992.15 × 432,596.10
  4. Step 4: Simplify right side
    511,328.10x = 331,797,812,820.62
  5. Step 5: Solve for x
    x = 331,797,812,820.62/511,328.10
  6. Step 6: Final answer
    x = 648,894.15

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Similar ratio
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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.