Home / 2,640,045.20-3,643,263.84-1,432,821.20

Finding the Fourth Proportional to 2,640,045.20, 3,643,263.84 and 1,432,821.20

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Solution

The fourth proportional to 2,640,045.20, 3,643,263.84 and 1,432,821.20 is: 1,977,294.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,045.20 : 3,643,263.84 = 1,432,821.20 : x
  2. Step 2: Convert to fraction form
    2,640,045.20/3,643,263.84 = 1,432,821.20/x
  3. Step 3: Cross multiply
    2,640,045.20x = 3,643,263.84 × 1,432,821.20
  4. Step 4: Simplify right side
    2,640,045.20x = 5,220,145,667,145.41
  5. Step 5: Solve for x
    x = 5,220,145,667,145.41/2,640,045.20
  6. Step 6: Final answer
    x = 1,977,294.05

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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.