Home / 2,815,011.60-4,222,517.76-685,095.72

Finding the Fourth Proportional to 2,815,011.60, 4,222,517.76 and 685,095.72

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Solution

The fourth proportional to 2,815,011.60, 4,222,517.76 and 685,095.72 is: 1,027,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,011.60 : 4,222,517.76 = 685,095.72 : x
  2. Step 2: Convert to fraction form
    2,815,011.60/4,222,517.76 = 685,095.72/x
  3. Step 3: Cross multiply
    2,815,011.60x = 4,222,517.76 × 685,095.72
  4. Step 4: Simplify right side
    2,815,011.60x = 2,892,828,844,999.99
  5. Step 5: Solve for x
    x = 2,892,828,844,999.99/2,815,011.60
  6. Step 6: Final answer
    x = 1,027,643.67

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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.