Home / 2,640,064.20-3,643,290.06-1,432,840.20

Finding the Fourth Proportional to 2,640,064.20, 3,643,290.06 and 1,432,840.20

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Solution

The fourth proportional to 2,640,064.20, 3,643,290.06 and 1,432,840.20 is: 1,977,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,064.20 : 3,643,290.06 = 1,432,840.20 : x
  2. Step 2: Convert to fraction form
    2,640,064.20/3,643,290.06 = 1,432,840.20/x
  3. Step 3: Cross multiply
    2,640,064.20x = 3,643,290.06 × 1,432,840.20
  4. Step 4: Simplify right side
    2,640,064.20x = 5,220,252,458,228.41
  5. Step 5: Solve for x
    x = 5,220,252,458,228.41/2,640,064.20
  6. Step 6: Final answer
    x = 1,977,320.27

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1.5x scale

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.