Home / 1,805,921.31-2,492,154.56-990,170.31

Finding the Fourth Proportional to 1,805,921.31, 2,492,154.56 and 990,170.31

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Solution

The fourth proportional to 1,805,921.31, 2,492,154.56 and 990,170.31 is: 1,366,425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,921.31 : 2,492,154.56 = 990,170.31 : x
  2. Step 2: Convert to fraction form
    1,805,921.31/2,492,154.56 = 990,170.31/x
  3. Step 3: Cross multiply
    1,805,921.31x = 2,492,154.56 × 990,170.31
  4. Step 4: Simplify right side
    1,805,921.31x = 2,467,657,448,292.26
  5. Step 5: Solve for x
    x = 2,467,657,448,292.26/1,805,921.31
  6. Step 6: Final answer
    x = 1,366,425.79

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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.