Home / 1,212,089.90-1,820,103.15-814,493.30

Finding the Fourth Proportional to 1,212,089.90, 1,820,103.15 and 814,493.30

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Solution

The fourth proportional to 1,212,089.90, 1,820,103.15 and 814,493.30 is: 1,223,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,089.90 : 1,820,103.15 = 814,493.30 : x
  2. Step 2: Convert to fraction form
    1,212,089.90/1,820,103.15 = 814,493.30/x
  3. Step 3: Cross multiply
    1,212,089.90x = 1,820,103.15 × 814,493.30
  4. Step 4: Simplify right side
    1,212,089.90x = 1,482,461,820,983.90
  5. Step 5: Solve for x
    x = 1,482,461,820,983.90/1,212,089.90
  6. Step 6: Final answer
    x = 1,223,062.60

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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.