Home / 1,420,122.65-1,959,776.45-775,542.83

Finding the Fourth Proportional to 1,420,122.65, 1,959,776.45 and 775,542.83

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Solution

The fourth proportional to 1,420,122.65, 1,959,776.45 and 775,542.83 is: 1,070,253.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,122.65 : 1,959,776.45 = 775,542.83 : x
  2. Step 2: Convert to fraction form
    1,420,122.65/1,959,776.45 = 775,542.83/x
  3. Step 3: Cross multiply
    1,420,122.65x = 1,959,776.45 × 775,542.83
  4. Step 4: Simplify right side
    1,420,122.65x = 1,519,890,564,401.47
  5. Step 5: Solve for x
    x = 1,519,890,564,401.47/1,420,122.65
  6. Step 6: Final answer
    x = 1,070,253.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.