Home / 1,990,990.64-2,986,488.12-495,082.64

Finding the Fourth Proportional to 1,990,990.64, 2,986,488.12 and 495,082.64

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Solution

The fourth proportional to 1,990,990.64, 2,986,488.12 and 495,082.64 is: 742,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,990.64 : 2,986,488.12 = 495,082.64 : x
  2. Step 2: Convert to fraction form
    1,990,990.64/2,986,488.12 = 495,082.64/x
  3. Step 3: Cross multiply
    1,990,990.64x = 2,986,488.12 × 495,082.64
  4. Step 4: Simplify right side
    1,990,990.64x = 1,478,558,422,778.24
  5. Step 5: Solve for x
    x = 1,478,558,422,778.24/1,990,990.64
  6. Step 6: Final answer
    x = 742,624.50

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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.