Home / 2,640,039.84-3,643,157.52-1,432,789.92

Finding the Fourth Proportional to 2,640,039.84, 3,643,157.52 and 1,432,789.92

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Solution

The fourth proportional to 2,640,039.84, 3,643,157.52 and 1,432,789.92 is: 1,977,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,039.84 : 3,643,157.52 = 1,432,789.92 : x
  2. Step 2: Convert to fraction form
    2,640,039.84/3,643,157.52 = 1,432,789.92/x
  3. Step 3: Cross multiply
    2,640,039.84x = 3,643,157.52 × 1,432,789.92
  4. Step 4: Simplify right side
    2,640,039.84x = 5,219,879,371,628.20
  5. Step 5: Solve for x
    x = 5,219,879,371,628.20/2,640,039.84
  6. Step 6: Final answer
    x = 1,977,197.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.