Home / 1,878,248.40-2,590,983.09-1,143,426.12

Finding the Fourth Proportional to 1,878,248.40, 2,590,983.09 and 1,143,426.12

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Solution

The fourth proportional to 1,878,248.40, 2,590,983.09 and 1,143,426.12 is: 1,577,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,248.40 : 2,590,983.09 = 1,143,426.12 : x
  2. Step 2: Convert to fraction form
    1,878,248.40/2,590,983.09 = 1,143,426.12/x
  3. Step 3: Cross multiply
    1,878,248.40x = 2,590,983.09 × 1,143,426.12
  4. Step 4: Simplify right side
    1,878,248.40x = 2,962,597,741,584.31
  5. Step 5: Solve for x
    x = 2,962,597,741,584.31/1,878,248.40
  6. Step 6: Final answer
    x = 1,577,319.45

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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.