Home / 1,377,419.40-2,066,129.10-1,227,828.60

Finding the Fourth Proportional to 1,377,419.40, 2,066,129.10 and 1,227,828.60

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Solution

The fourth proportional to 1,377,419.40, 2,066,129.10 and 1,227,828.60 is: 1,841,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,419.40 : 2,066,129.10 = 1,227,828.60 : x
  2. Step 2: Convert to fraction form
    1,377,419.40/2,066,129.10 = 1,227,828.60/x
  3. Step 3: Cross multiply
    1,377,419.40x = 2,066,129.10 × 1,227,828.60
  4. Step 4: Simplify right side
    1,377,419.40x = 2,536,852,400,272.26
  5. Step 5: Solve for x
    x = 2,536,852,400,272.26/1,377,419.40
  6. Step 6: Final answer
    x = 1,841,742.90

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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.