Home / 2,790,122.40-4,185,232.16-768,355.92

Finding the Fourth Proportional to 2,790,122.40, 4,185,232.16 and 768,355.92

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Solution

The fourth proportional to 2,790,122.40, 4,185,232.16 and 768,355.92 is: 1,152,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,122.40 : 4,185,232.16 = 768,355.92 : x
  2. Step 2: Convert to fraction form
    2,790,122.40/4,185,232.16 = 768,355.92/x
  3. Step 3: Cross multiply
    2,790,122.40x = 4,185,232.16 × 768,355.92
  4. Step 4: Simplify right side
    2,790,122.40x = 3,215,747,906,710.39
  5. Step 5: Solve for x
    x = 3,215,747,906,710.39/2,790,122.40
  6. Step 6: Final answer
    x = 1,152,547.25

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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.