Home / 2,912,137.40-4,368,206.10-890,381.32

Finding the Fourth Proportional to 2,912,137.40, 4,368,206.10 and 890,381.32

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Solution

The fourth proportional to 2,912,137.40, 4,368,206.10 and 890,381.32 is: 1,335,571.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,137.40 : 4,368,206.10 = 890,381.32 : x
  2. Step 2: Convert to fraction form
    2,912,137.40/4,368,206.10 = 890,381.32/x
  3. Step 3: Cross multiply
    2,912,137.40x = 4,368,206.10 × 890,381.32
  4. Step 4: Simplify right side
    2,912,137.40x = 3,889,369,113,350.05
  5. Step 5: Solve for x
    x = 3,889,369,113,350.05/2,912,137.40
  6. Step 6: Final answer
    x = 1,335,571.98

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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.