Home / 1,339,639.90-2,009,459.85-1,330,308.70

Finding the Fourth Proportional to 1,339,639.90, 2,009,459.85 and 1,330,308.70

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Solution

The fourth proportional to 1,339,639.90, 2,009,459.85 and 1,330,308.70 is: 1,995,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,639.90 : 2,009,459.85 = 1,330,308.70 : x
  2. Step 2: Convert to fraction form
    1,339,639.90/2,009,459.85 = 1,330,308.70/x
  3. Step 3: Cross multiply
    1,339,639.90x = 2,009,459.85 × 1,330,308.70
  4. Step 4: Simplify right side
    1,339,639.90x = 2,673,201,920,755.69
  5. Step 5: Solve for x
    x = 2,673,201,920,755.69/1,339,639.90
  6. Step 6: Final answer
    x = 1,995,463.05

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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.