Home / 711,939.20-1,067,908.80-446,518.40

Finding the Fourth Proportional to 711,939.20, 1,067,908.80 and 446,518.40

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Solution

The fourth proportional to 711,939.20, 1,067,908.80 and 446,518.40 is: 669,777.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,939.20 : 1,067,908.80 = 446,518.40 : x
  2. Step 2: Convert to fraction form
    711,939.20/1,067,908.80 = 446,518.40/x
  3. Step 3: Cross multiply
    711,939.20x = 1,067,908.80 × 446,518.40
  4. Step 4: Simplify right side
    711,939.20x = 476,840,928,721.92
  5. Step 5: Solve for x
    x = 476,840,928,721.92/711,939.20
  6. Step 6: Final answer
    x = 669,777.60

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Similar ratio
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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.