Home / 3,657,328.80-5,489,103.60-1,638,679.20

Finding the Fourth Proportional to 3,657,328.80, 5,489,103.60 and 1,638,679.20

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Solution

The fourth proportional to 3,657,328.80, 5,489,103.60 and 1,638,679.20 is: 2,459,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657,328.80 : 5,489,103.60 = 1,638,679.20 : x
  2. Step 2: Convert to fraction form
    3,657,328.80/5,489,103.60 = 1,638,679.20/x
  3. Step 3: Cross multiply
    3,657,328.80x = 5,489,103.60 × 1,638,679.20
  4. Step 4: Simplify right side
    3,657,328.80x = 8,994,879,895,965.12
  5. Step 5: Solve for x
    x = 8,994,879,895,965.12/3,657,328.80
  6. Step 6: Final answer
    x = 2,459,412.43

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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.