Home / 2,713,285.60-4,069,928.40-820,319.20

Finding the Fourth Proportional to 2,713,285.60, 4,069,928.40 and 820,319.20

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Solution

The fourth proportional to 2,713,285.60, 4,069,928.40 and 820,319.20 is: 1,230,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713,285.60 : 4,069,928.40 = 820,319.20 : x
  2. Step 2: Convert to fraction form
    2,713,285.60/4,069,928.40 = 820,319.20/x
  3. Step 3: Cross multiply
    2,713,285.60x = 4,069,928.40 × 820,319.20
  4. Step 4: Simplify right side
    2,713,285.60x = 3,338,640,409,145.28
  5. Step 5: Solve for x
    x = 3,338,640,409,145.28/2,713,285.60
  6. Step 6: Final answer
    x = 1,230,478.80

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Similar ratio
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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.