Home / 1,301,419.40-1,951,949.10-403,478.60

Finding the Fourth Proportional to 1,301,419.40, 1,951,949.10 and 403,478.60

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Solution

The fourth proportional to 1,301,419.40, 1,951,949.10 and 403,478.60 is: 605,162.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,419.40 : 1,951,949.10 = 403,478.60 : x
  2. Step 2: Convert to fraction form
    1,301,419.40/1,951,949.10 = 403,478.60/x
  3. Step 3: Cross multiply
    1,301,419.40x = 1,951,949.10 × 403,478.60
  4. Step 4: Simplify right side
    1,301,419.40x = 787,569,690,139.26
  5. Step 5: Solve for x
    x = 787,569,690,139.26/1,301,419.40
  6. Step 6: Final answer
    x = 605,162.09

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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.