Home / 2,021,421.40-3,030,090.90-1,008,986.20

Finding the Fourth Proportional to 2,021,421.40, 3,030,090.90 and 1,008,986.20

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Solution

The fourth proportional to 2,021,421.40, 3,030,090.90 and 1,008,986.20 is: 1,512,460.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021,421.40 : 3,030,090.90 = 1,008,986.20 : x
  2. Step 2: Convert to fraction form
    2,021,421.40/3,030,090.90 = 1,008,986.20/x
  3. Step 3: Cross multiply
    2,021,421.40x = 3,030,090.90 × 1,008,986.20
  4. Step 4: Simplify right side
    2,021,421.40x = 3,057,319,902,845.58
  5. Step 5: Solve for x
    x = 3,057,319,902,845.58/2,021,421.40
  6. Step 6: Final answer
    x = 1,512,460.44

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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.