Home / 1,308,784.80-1,963,306.80-455,725.20

Finding the Fourth Proportional to 1,308,784.80, 1,963,306.80 and 455,725.20

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Solution

The fourth proportional to 1,308,784.80, 1,963,306.80 and 455,725.20 is: 683,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,784.80 : 1,963,306.80 = 455,725.20 : x
  2. Step 2: Convert to fraction form
    1,308,784.80/1,963,306.80 = 455,725.20/x
  3. Step 3: Cross multiply
    1,308,784.80x = 1,963,306.80 × 455,725.20
  4. Step 4: Simplify right side
    1,308,784.80x = 894,728,384,091.36
  5. Step 5: Solve for x
    x = 894,728,384,091.36/1,308,784.80
  6. Step 6: Final answer
    x = 683,632.93

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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.