Home / 2,805,890.80-4,209,208.80-911,994.16

Finding the Fourth Proportional to 2,805,890.80, 4,209,208.80 and 911,994.16

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Solution

The fourth proportional to 2,805,890.80, 4,209,208.80 and 911,994.16 is: 1,368,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805,890.80 : 4,209,208.80 = 911,994.16 : x
  2. Step 2: Convert to fraction form
    2,805,890.80/4,209,208.80 = 911,994.16/x
  3. Step 3: Cross multiply
    2,805,890.80x = 4,209,208.80 × 911,994.16
  4. Step 4: Simplify right side
    2,805,890.80x = 3,838,773,843,820.61
  5. Step 5: Solve for x
    x = 3,838,773,843,820.61/2,805,890.80
  6. Step 6: Final answer
    x = 1,368,112.35

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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.