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Finding the Fourth Proportional to 511,411.63, 768,799.15 and 474,418.30

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Solution

The fourth proportional to 511,411.63, 768,799.15 and 474,418.30 is: 713,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,411.63 : 768,799.15 = 474,418.30 : x
  2. Step 2: Convert to fraction form
    511,411.63/768,799.15 = 474,418.30/x
  3. Step 3: Cross multiply
    511,411.63x = 768,799.15 × 474,418.30
  4. Step 4: Simplify right side
    511,411.63x = 364,732,385,784.45
  5. Step 5: Solve for x
    x = 364,732,385,784.45/511,411.63
  6. Step 6: Final answer
    x = 713,187.51

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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.