Home / 1,308,783.80-1,963,305.30-455,724.20

Finding the Fourth Proportional to 1,308,783.80, 1,963,305.30 and 455,724.20

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Solution

The fourth proportional to 1,308,783.80, 1,963,305.30 and 455,724.20 is: 683,631.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,783.80 : 1,963,305.30 = 455,724.20 : x
  2. Step 2: Convert to fraction form
    1,308,783.80/1,963,305.30 = 455,724.20/x
  3. Step 3: Cross multiply
    1,308,783.80x = 1,963,305.30 × 455,724.20
  4. Step 4: Simplify right side
    1,308,783.80x = 894,725,737,198.26
  5. Step 5: Solve for x
    x = 894,725,737,198.26/1,308,783.80
  6. Step 6: Final answer
    x = 683,631.43

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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.