Home / 840,799-1,261,186.65-391,268.44

Finding the Fourth Proportional to 840,799, 1,261,186.65 and 391,268.44

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Solution

The fourth proportional to 840,799, 1,261,186.65 and 391,268.44 is: 586,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,799 : 1,261,186.65 = 391,268.44 : x
  2. Step 2: Convert to fraction form
    840,799/1,261,186.65 = 391,268.44/x
  3. Step 3: Cross multiply
    840,799x = 1,261,186.65 × 391,268.44
  4. Step 4: Simplify right side
    840,799x = 493,462,533,094.33
  5. Step 5: Solve for x
    x = 493,462,533,094.33/840,799
  6. Step 6: Final answer
    x = 586,897.15

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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.