Home / 1,268,962.80-1,902,983.40-637,666.80

Finding the Fourth Proportional to 1,268,962.80, 1,902,983.40 and 637,666.80

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Solution

The fourth proportional to 1,268,962.80, 1,902,983.40 and 637,666.80 is: 956,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,962.80 : 1,902,983.40 = 637,666.80 : x
  2. Step 2: Convert to fraction form
    1,268,962.80/1,902,983.40 = 637,666.80/x
  3. Step 3: Cross multiply
    1,268,962.80x = 1,902,983.40 × 637,666.80
  4. Step 4: Simplify right side
    1,268,962.80x = 1,213,469,335,131.12
  5. Step 5: Solve for x
    x = 1,213,469,335,131.12/1,268,962.80
  6. Step 6: Final answer
    x = 956,268.64

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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.