Home / 720,416.76-1,080,625.12-271,238.40

Finding the Fourth Proportional to 720,416.76, 1,080,625.12 and 271,238.40

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Solution

The fourth proportional to 720,416.76, 1,080,625.12 and 271,238.40 is: 406,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,416.76 : 1,080,625.12 = 271,238.40 : x
  2. Step 2: Convert to fraction form
    720,416.76/1,080,625.12 = 271,238.40/x
  3. Step 3: Cross multiply
    720,416.76x = 1,080,625.12 × 271,238.40
  4. Step 4: Simplify right side
    720,416.76x = 293,107,028,548.61
  5. Step 5: Solve for x
    x = 293,107,028,548.61/720,416.76
  6. Step 6: Final answer
    x = 406,857.59

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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.