Home / 1,419,966.40-2,128,912.80-578,084.80

Finding the Fourth Proportional to 1,419,966.40, 2,128,912.80 and 578,084.80

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Solution

The fourth proportional to 1,419,966.40, 2,128,912.80 and 578,084.80 is: 866,705.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,966.40 : 2,128,912.80 = 578,084.80 : x
  2. Step 2: Convert to fraction form
    1,419,966.40/2,128,912.80 = 578,084.80/x
  3. Step 3: Cross multiply
    1,419,966.40x = 2,128,912.80 × 578,084.80
  4. Step 4: Simplify right side
    1,419,966.40x = 1,230,692,130,205.44
  5. Step 5: Solve for x
    x = 1,230,692,130,205.44/1,419,966.40
  6. Step 6: Final answer
    x = 866,705.11

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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.