Home / 3,407,428-5,109,645.12-1,276,017.28

Finding the Fourth Proportional to 3,407,428, 5,109,645.12 and 1,276,017.28

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Solution

The fourth proportional to 3,407,428, 5,109,645.12 and 1,276,017.28 is: 1,913,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407,428 : 5,109,645.12 = 1,276,017.28 : x
  2. Step 2: Convert to fraction form
    3,407,428/5,109,645.12 = 1,276,017.28/x
  3. Step 3: Cross multiply
    3,407,428x = 5,109,645.12 × 1,276,017.28
  4. Step 4: Simplify right side
    3,407,428x = 6,519,995,467,787.67
  5. Step 5: Solve for x
    x = 6,519,995,467,787.67/3,407,428
  6. Step 6: Final answer
    x = 1,913,465.37

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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.