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Finding the Fourth Proportional to 717,994.58, 990,832.52 and 395,704.67

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Solution

The fourth proportional to 717,994.58, 990,832.52 and 395,704.67 is: 546,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,994.58 : 990,832.52 = 395,704.67 : x
  2. Step 2: Convert to fraction form
    717,994.58/990,832.52 = 395,704.67/x
  3. Step 3: Cross multiply
    717,994.58x = 990,832.52 × 395,704.67
  4. Step 4: Simplify right side
    717,994.58x = 392,077,053,373.35
  5. Step 5: Solve for x
    x = 392,077,053,373.35/717,994.58
  6. Step 6: Final answer
    x = 546,072.44

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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.