Home / 3,638,543.40-5,457,815.10-1,242,028.80

Finding the Fourth Proportional to 3,638,543.40, 5,457,815.10 and 1,242,028.80

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Solution

The fourth proportional to 3,638,543.40, 5,457,815.10 and 1,242,028.80 is: 1,863,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638,543.40 : 5,457,815.10 = 1,242,028.80 : x
  2. Step 2: Convert to fraction form
    3,638,543.40/5,457,815.10 = 1,242,028.80/x
  3. Step 3: Cross multiply
    3,638,543.40x = 5,457,815.10 × 1,242,028.80
  4. Step 4: Simplify right side
    3,638,543.40x = 6,778,763,539,274.88
  5. Step 5: Solve for x
    x = 6,778,763,539,274.88/3,638,543.40
  6. Step 6: Final answer
    x = 1,863,043.20

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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.