Home / 387,086.60-579,852.30-268,891.40

Finding the Fourth Proportional to 387,086.60, 579,852.30 and 268,891.40

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Solution

The fourth proportional to 387,086.60, 579,852.30 and 268,891.40 is: 402,796.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,086.60 : 579,852.30 = 268,891.40 : x
  2. Step 2: Convert to fraction form
    387,086.60/579,852.30 = 268,891.40/x
  3. Step 3: Cross multiply
    387,086.60x = 579,852.30 × 268,891.40
  4. Step 4: Simplify right side
    387,086.60x = 155,917,296,740.22
  5. Step 5: Solve for x
    x = 155,917,296,740.22/387,086.60
  6. Step 6: Final answer
    x = 402,796.94

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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.