Home / 1,227,867.40-1,842,002.70-386,216.20

Finding the Fourth Proportional to 1,227,867.40, 1,842,002.70 and 386,216.20

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Solution

The fourth proportional to 1,227,867.40, 1,842,002.70 and 386,216.20 is: 579,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,867.40 : 1,842,002.70 = 386,216.20 : x
  2. Step 2: Convert to fraction form
    1,227,867.40/1,842,002.70 = 386,216.20/x
  3. Step 3: Cross multiply
    1,227,867.40x = 1,842,002.70 × 386,216.20
  4. Step 4: Simplify right side
    1,227,867.40x = 711,411,283,183.74
  5. Step 5: Solve for x
    x = 711,411,283,183.74/1,227,867.40
  6. Step 6: Final answer
    x = 579,387.71

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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.