Home / 711,182.40-1,067,464.80-431,246.40

Finding the Fourth Proportional to 711,182.40, 1,067,464.80 and 431,246.40

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Solution

The fourth proportional to 711,182.40, 1,067,464.80 and 431,246.40 is: 647,288.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,182.40 : 1,067,464.80 = 431,246.40 : x
  2. Step 2: Convert to fraction form
    711,182.40/1,067,464.80 = 431,246.40/x
  3. Step 3: Cross multiply
    711,182.40x = 1,067,464.80 × 431,246.40
  4. Step 4: Simplify right side
    711,182.40x = 460,340,352,126.72
  5. Step 5: Solve for x
    x = 460,340,352,126.72/711,182.40
  6. Step 6: Final answer
    x = 647,288.73

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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.