Home / 1,213,756.20-1,818,228.60-1,064,165.40

Finding the Fourth Proportional to 1,213,756.20, 1,818,228.60 and 1,064,165.40

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Solution

The fourth proportional to 1,213,756.20, 1,818,228.60 and 1,064,165.40 is: 1,594,138.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,756.20 : 1,818,228.60 = 1,064,165.40 : x
  2. Step 2: Convert to fraction form
    1,213,756.20/1,818,228.60 = 1,064,165.40/x
  3. Step 3: Cross multiply
    1,213,756.20x = 1,818,228.60 × 1,064,165.40
  4. Step 4: Simplify right side
    1,213,756.20x = 1,934,895,965,410.44
  5. Step 5: Solve for x
    x = 1,934,895,965,410.44/1,213,756.20
  6. Step 6: Final answer
    x = 1,594,138.89

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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.