Home / 1,512,947.64-2,087,718.22-900,978.68

Finding the Fourth Proportional to 1,512,947.64, 2,087,718.22 and 900,978.68

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Solution

The fourth proportional to 1,512,947.64, 2,087,718.22 and 900,978.68 is: 1,243,261.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,947.64 : 2,087,718.22 = 900,978.68 : x
  2. Step 2: Convert to fraction form
    1,512,947.64/2,087,718.22 = 900,978.68/x
  3. Step 3: Cross multiply
    1,512,947.64x = 2,087,718.22 × 900,978.68
  4. Step 4: Simplify right side
    1,512,947.64x = 1,880,989,606,067.55
  5. Step 5: Solve for x
    x = 1,880,989,606,067.55/1,512,947.64
  6. Step 6: Final answer
    x = 1,243,261.54

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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.