Home / 3,939,738.48-5,909,788.80-1,207,090.20

Finding the Fourth Proportional to 3,939,738.48, 5,909,788.80 and 1,207,090.20

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Solution

The fourth proportional to 3,939,738.48, 5,909,788.80 and 1,207,090.20 is: 1,810,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,738.48 : 5,909,788.80 = 1,207,090.20 : x
  2. Step 2: Convert to fraction form
    3,939,738.48/5,909,788.80 = 1,207,090.20/x
  3. Step 3: Cross multiply
    3,939,738.48x = 5,909,788.80 × 1,207,090.20
  4. Step 4: Simplify right side
    3,939,738.48x = 7,133,648,144,549.76
  5. Step 5: Solve for x
    x = 7,133,648,144,549.76/3,939,738.48
  6. Step 6: Final answer
    x = 1,810,690.78

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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.