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Finding the Fourth Proportional to 511,332.60, 766,998.90 and 432,600.60

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Solution

The fourth proportional to 511,332.60, 766,998.90 and 432,600.60 is: 648,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,332.60 : 766,998.90 = 432,600.60 : x
  2. Step 2: Convert to fraction form
    511,332.60/766,998.90 = 432,600.60/x
  3. Step 3: Cross multiply
    511,332.60x = 766,998.90 × 432,600.60
  4. Step 4: Simplify right side
    511,332.60x = 331,804,184,339.34
  5. Step 5: Solve for x
    x = 331,804,184,339.34/511,332.60
  6. Step 6: Final answer
    x = 648,900.90

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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.