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Finding the Fourth Proportional to 432,782.42, 597,406.41 and 387,380.30

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Solution

The fourth proportional to 432,782.42, 597,406.41 and 387,380.30 is: 534,734.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,782.42 : 597,406.41 = 387,380.30 : x
  2. Step 2: Convert to fraction form
    432,782.42/597,406.41 = 387,380.30/x
  3. Step 3: Cross multiply
    432,782.42x = 597,406.41 × 387,380.30
  4. Step 4: Simplify right side
    432,782.42x = 231,423,474,327.72
  5. Step 5: Solve for x
    x = 231,423,474,327.72/432,782.42
  6. Step 6: Final answer
    x = 534,734.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.