Home / 935,392.20-1,290,844.80-521,946.42

Finding the Fourth Proportional to 935,392.20, 1,290,844.80 and 521,946.42

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Solution

The fourth proportional to 935,392.20, 1,290,844.80 and 521,946.42 is: 720,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,392.20 : 1,290,844.80 = 521,946.42 : x
  2. Step 2: Convert to fraction form
    935,392.20/1,290,844.80 = 521,946.42/x
  3. Step 3: Cross multiply
    935,392.20x = 1,290,844.80 × 521,946.42
  4. Step 4: Simplify right side
    935,392.20x = 673,751,822,135.62
  5. Step 5: Solve for x
    x = 673,751,822,135.62/935,392.20
  6. Step 6: Final answer
    x = 720,288.05

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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.