Home / 2,940,821.40-4,411,232.10-811,234.20

Finding the Fourth Proportional to 2,940,821.40, 4,411,232.10 and 811,234.20

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Solution

The fourth proportional to 2,940,821.40, 4,411,232.10 and 811,234.20 is: 1,216,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940,821.40 : 4,411,232.10 = 811,234.20 : x
  2. Step 2: Convert to fraction form
    2,940,821.40/4,411,232.10 = 811,234.20/x
  3. Step 3: Cross multiply
    2,940,821.40x = 4,411,232.10 × 811,234.20
  4. Step 4: Simplify right side
    2,940,821.40x = 3,578,542,343,657.82
  5. Step 5: Solve for x
    x = 3,578,542,343,657.82/2,940,821.40
  6. Step 6: Final answer
    x = 1,216,851.30

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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.