Home / 1,296,425.20-1,939,972.20-876,521.20

Finding the Fourth Proportional to 1,296,425.20, 1,939,972.20 and 876,521.20

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Solution

The fourth proportional to 1,296,425.20, 1,939,972.20 and 876,521.20 is: 1,311,627.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,425.20 : 1,939,972.20 = 876,521.20 : x
  2. Step 2: Convert to fraction form
    1,296,425.20/1,939,972.20 = 876,521.20/x
  3. Step 3: Cross multiply
    1,296,425.20x = 1,939,972.20 × 876,521.20
  4. Step 4: Simplify right side
    1,296,425.20x = 1,700,426,760,710.64
  5. Step 5: Solve for x
    x = 1,700,426,760,710.64/1,296,425.20
  6. Step 6: Final answer
    x = 1,311,627.36

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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.