Home / 701,031.20-1,050,164.40-419,712.80

Finding the Fourth Proportional to 701,031.20, 1,050,164.40 and 419,712.80

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Solution

The fourth proportional to 701,031.20, 1,050,164.40 and 419,712.80 is: 628,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,031.20 : 1,050,164.40 = 419,712.80 : x
  2. Step 2: Convert to fraction form
    701,031.20/1,050,164.40 = 419,712.80/x
  3. Step 3: Cross multiply
    701,031.20x = 1,050,164.40 × 419,712.80
  4. Step 4: Simplify right side
    701,031.20x = 440,767,440,784.32
  5. Step 5: Solve for x
    x = 440,767,440,784.32/701,031.20
  6. Step 6: Final answer
    x = 628,741.55

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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.