Home / 1,544,221.60-2,316,217.20-645,431.20

Finding the Fourth Proportional to 1,544,221.60, 2,316,217.20 and 645,431.20

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Solution

The fourth proportional to 1,544,221.60, 2,316,217.20 and 645,431.20 is: 968,098.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544,221.60 : 2,316,217.20 = 645,431.20 : x
  2. Step 2: Convert to fraction form
    1,544,221.60/2,316,217.20 = 645,431.20/x
  3. Step 3: Cross multiply
    1,544,221.60x = 2,316,217.20 × 645,431.20
  4. Step 4: Simplify right side
    1,544,221.60x = 1,494,958,846,856.64
  5. Step 5: Solve for x
    x = 1,494,958,846,856.64/1,544,221.60
  6. Step 6: Final answer
    x = 968,098.65

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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.