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Finding the Fourth Proportional to 1,190,772, 1,643,291.28 and 654,228

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Solution

The fourth proportional to 1,190,772, 1,643,291.28 and 654,228 is: 902,848.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,772 : 1,643,291.28 = 654,228 : x
  2. Step 2: Convert to fraction form
    1,190,772/1,643,291.28 = 654,228/x
  3. Step 3: Cross multiply
    1,190,772x = 1,643,291.28 × 654,228
  4. Step 4: Simplify right side
    1,190,772x = 1,075,087,167,531.84
  5. Step 5: Solve for x
    x = 1,075,087,167,531.84/1,190,772
  6. Step 6: Final answer
    x = 902,848.88

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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.