Home / 1,988,897.40-2,985,947.82-1,180,757.16

Finding the Fourth Proportional to 1,988,897.40, 2,985,947.82 and 1,180,757.16

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Solution

The fourth proportional to 1,988,897.40, 2,985,947.82 and 1,180,757.16 is: 1,772,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,897.40 : 2,985,947.82 = 1,180,757.16 : x
  2. Step 2: Convert to fraction form
    1,988,897.40/2,985,947.82 = 1,180,757.16/x
  3. Step 3: Cross multiply
    1,988,897.40x = 2,985,947.82 × 1,180,757.16
  4. Step 4: Simplify right side
    1,988,897.40x = 3,525,679,267,851.39
  5. Step 5: Solve for x
    x = 3,525,679,267,851.39/1,988,897.40
  6. Step 6: Final answer
    x = 1,772,680.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.