Home / 2,012,428.92-3,018,643.40-1,379,423.64

Finding the Fourth Proportional to 2,012,428.92, 3,018,643.40 and 1,379,423.64

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Solution

The fourth proportional to 2,012,428.92, 3,018,643.40 and 1,379,423.64 is: 2,069,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012,428.92 : 3,018,643.40 = 1,379,423.64 : x
  2. Step 2: Convert to fraction form
    2,012,428.92/3,018,643.40 = 1,379,423.64/x
  3. Step 3: Cross multiply
    2,012,428.92x = 3,018,643.40 × 1,379,423.64
  4. Step 4: Simplify right side
    2,012,428.92x = 4,163,988,066,689.98
  5. Step 5: Solve for x
    x = 4,163,988,066,689.98/2,012,428.92
  6. Step 6: Final answer
    x = 2,069,135.47

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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.