Home / 1,330,292.10-1,995,438.15-1,309,296.90

Finding the Fourth Proportional to 1,330,292.10, 1,995,438.15 and 1,309,296.90

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Solution

The fourth proportional to 1,330,292.10, 1,995,438.15 and 1,309,296.90 is: 1,963,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,292.10 : 1,995,438.15 = 1,309,296.90 : x
  2. Step 2: Convert to fraction form
    1,330,292.10/1,995,438.15 = 1,309,296.90/x
  3. Step 3: Cross multiply
    1,330,292.10x = 1,995,438.15 × 1,309,296.90
  4. Step 4: Simplify right side
    1,330,292.10x = 2,612,620,983,936.74
  5. Step 5: Solve for x
    x = 2,612,620,983,936.74/1,330,292.10
  6. Step 6: Final answer
    x = 1,963,945.35

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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.