Home / 1,277,848.80-1,914,440.40-1,039,903.20

Finding the Fourth Proportional to 1,277,848.80, 1,914,440.40 and 1,039,903.20

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Solution

The fourth proportional to 1,277,848.80, 1,914,440.40 and 1,039,903.20 is: 1,557,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,848.80 : 1,914,440.40 = 1,039,903.20 : x
  2. Step 2: Convert to fraction form
    1,277,848.80/1,914,440.40 = 1,039,903.20/x
  3. Step 3: Cross multiply
    1,277,848.80x = 1,914,440.40 × 1,039,903.20
  4. Step 4: Simplify right side
    1,277,848.80x = 1,990,832,698,169.28
  5. Step 5: Solve for x
    x = 1,990,832,698,169.28/1,277,848.80
  6. Step 6: Final answer
    x = 1,557,956.39

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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.