Home / 1,227,816.25-1,842,009.29-386,346.13

Finding the Fourth Proportional to 1,227,816.25, 1,842,009.29 and 386,346.13

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Solution

The fourth proportional to 1,227,816.25, 1,842,009.29 and 386,346.13 is: 579,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,816.25 : 1,842,009.29 = 386,346.13 : x
  2. Step 2: Convert to fraction form
    1,227,816.25/1,842,009.29 = 386,346.13/x
  3. Step 3: Cross multiply
    1,227,816.25x = 1,842,009.29 × 386,346.13
  4. Step 4: Simplify right side
    1,227,816.25x = 711,653,160,615.55
  5. Step 5: Solve for x
    x = 711,653,160,615.55/1,227,816.25
  6. Step 6: Final answer
    x = 579,608.85

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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.