Home / 1,387,200.30-2,077,690.05-1,200,576.30

Finding the Fourth Proportional to 1,387,200.30, 2,077,690.05 and 1,200,576.30

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Solution

The fourth proportional to 1,387,200.30, 2,077,690.05 and 1,200,576.30 is: 1,798,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,200.30 : 2,077,690.05 = 1,200,576.30 : x
  2. Step 2: Convert to fraction form
    1,387,200.30/2,077,690.05 = 1,200,576.30/x
  3. Step 3: Cross multiply
    1,387,200.30x = 2,077,690.05 × 1,200,576.30
  4. Step 4: Simplify right side
    1,387,200.30x = 2,494,425,432,775.82
  5. Step 5: Solve for x
    x = 2,494,425,432,775.82/1,387,200.30
  6. Step 6: Final answer
    x = 1,798,172.50

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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.