Home / 3,221,764.60-4,833,338.10-978,129.40

Finding the Fourth Proportional to 3,221,764.60, 4,833,338.10 and 978,129.40

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Solution

The fourth proportional to 3,221,764.60, 4,833,338.10 and 978,129.40 is: 1,467,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221,764.60 : 4,833,338.10 = 978,129.40 : x
  2. Step 2: Convert to fraction form
    3,221,764.60/4,833,338.10 = 978,129.40/x
  3. Step 3: Cross multiply
    3,221,764.60x = 4,833,338.10 × 978,129.40
  4. Step 4: Simplify right side
    3,221,764.60x = 4,727,630,095,750.14
  5. Step 5: Solve for x
    x = 4,727,630,095,750.14/3,221,764.60
  6. Step 6: Final answer
    x = 1,467,403.95

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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.