Home / 711,365.80-1,067,826.30-445,426.60

Finding the Fourth Proportional to 711,365.80, 1,067,826.30 and 445,426.60

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Solution

The fourth proportional to 711,365.80, 1,067,826.30 and 445,426.60 is: 668,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,365.80 : 1,067,826.30 = 445,426.60 : x
  2. Step 2: Convert to fraction form
    711,365.80/1,067,826.30 = 445,426.60/x
  3. Step 3: Cross multiply
    711,365.80x = 1,067,826.30 × 445,426.60
  4. Step 4: Simplify right side
    711,365.80x = 475,638,238,199.58
  5. Step 5: Solve for x
    x = 475,638,238,199.58/711,365.80
  6. Step 6: Final answer
    x = 668,626.80

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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.