Home / 3,679,219.60-5,518,829.40-3,119,347.60

Finding the Fourth Proportional to 3,679,219.60, 5,518,829.40 and 3,119,347.60

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Solution

The fourth proportional to 3,679,219.60, 5,518,829.40 and 3,119,347.60 is: 4,679,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679,219.60 : 5,518,829.40 = 3,119,347.60 : x
  2. Step 2: Convert to fraction form
    3,679,219.60/5,518,829.40 = 3,119,347.60/x
  3. Step 3: Cross multiply
    3,679,219.60x = 5,518,829.40 × 3,119,347.60
  4. Step 4: Simplify right side
    3,679,219.60x = 17,215,147,243,699.44
  5. Step 5: Solve for x
    x = 17,215,147,243,699.44/3,679,219.60
  6. Step 6: Final answer
    x = 4,679,021.40

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Similar ratio
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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.