Home / 3,129,128.68-4,317,457.48-1,771,001.68

Finding the Fourth Proportional to 3,129,128.68, 4,317,457.48 and 1,771,001.68

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Solution

The fourth proportional to 3,129,128.68, 4,317,457.48 and 1,771,001.68 is: 2,443,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,128.68 : 4,317,457.48 = 1,771,001.68 : x
  2. Step 2: Convert to fraction form
    3,129,128.68/4,317,457.48 = 1,771,001.68/x
  3. Step 3: Cross multiply
    3,129,128.68x = 4,317,457.48 × 1,771,001.68
  4. Step 4: Simplify right side
    3,129,128.68x = 7,646,224,450,408.57
  5. Step 5: Solve for x
    x = 7,646,224,450,408.57/3,129,128.68
  6. Step 6: Final answer
    x = 2,443,563.44

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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.