Home / 1,335,401.76-1,842,855.12-731,789.76

Finding the Fourth Proportional to 1,335,401.76, 1,842,855.12 and 731,789.76

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Solution

The fourth proportional to 1,335,401.76, 1,842,855.12 and 731,789.76 is: 1,009,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,401.76 : 1,842,855.12 = 731,789.76 : x
  2. Step 2: Convert to fraction form
    1,335,401.76/1,842,855.12 = 731,789.76/x
  3. Step 3: Cross multiply
    1,335,401.76x = 1,842,855.12 × 731,789.76
  4. Step 4: Simplify right side
    1,335,401.76x = 1,348,582,505,979.57
  5. Step 5: Solve for x
    x = 1,348,582,505,979.57/1,335,401.76
  6. Step 6: Final answer
    x = 1,009,870.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.