Home / 2,912,135.40-4,368,203.10-890,379.32

Finding the Fourth Proportional to 2,912,135.40, 4,368,203.10 and 890,379.32

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Solution

The fourth proportional to 2,912,135.40, 4,368,203.10 and 890,379.32 is: 1,335,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,135.40 : 4,368,203.10 = 890,379.32 : x
  2. Step 2: Convert to fraction form
    2,912,135.40/4,368,203.10 = 890,379.32/x
  3. Step 3: Cross multiply
    2,912,135.40x = 4,368,203.10 × 890,379.32
  4. Step 4: Simplify right side
    2,912,135.40x = 3,889,357,683,958.88
  5. Step 5: Solve for x
    x = 3,889,357,683,958.88/2,912,135.40
  6. Step 6: Final answer
    x = 1,335,568.97

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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.