Home / 711,380.80-1,067,848.80-445,441.60

Finding the Fourth Proportional to 711,380.80, 1,067,848.80 and 445,441.60

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Solution

The fourth proportional to 711,380.80, 1,067,848.80 and 445,441.60 is: 668,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,380.80 : 1,067,848.80 = 445,441.60 : x
  2. Step 2: Convert to fraction form
    711,380.80/1,067,848.80 = 445,441.60/x
  3. Step 3: Cross multiply
    711,380.80x = 1,067,848.80 × 445,441.60
  4. Step 4: Simplify right side
    711,380.80x = 475,664,278,030.08
  5. Step 5: Solve for x
    x = 475,664,278,030.08/711,380.80
  6. Step 6: Final answer
    x = 668,649.31

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Double scale
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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.