Home / 2,485,886.14-3,430,489.01-1,398,157.28

Finding the Fourth Proportional to 2,485,886.14, 3,430,489.01 and 1,398,157.28

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Solution

The fourth proportional to 2,485,886.14, 3,430,489.01 and 1,398,157.28 is: 1,929,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485,886.14 : 3,430,489.01 = 1,398,157.28 : x
  2. Step 2: Convert to fraction form
    2,485,886.14/3,430,489.01 = 1,398,157.28/x
  3. Step 3: Cross multiply
    2,485,886.14x = 3,430,489.01 × 1,398,157.28
  4. Step 4: Simplify right side
    2,485,886.14x = 4,796,363,195,363.11
  5. Step 5: Solve for x
    x = 4,796,363,195,363.11/2,485,886.14
  6. Step 6: Final answer
    x = 1,929,438.01

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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.