Home / 1,520,297.60-2,279,134.20-772,343.60

Finding the Fourth Proportional to 1,520,297.60, 2,279,134.20 and 772,343.60

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Solution

The fourth proportional to 1,520,297.60, 2,279,134.20 and 772,343.60 is: 1,157,848.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,297.60 : 2,279,134.20 = 772,343.60 : x
  2. Step 2: Convert to fraction form
    1,520,297.60/2,279,134.20 = 772,343.60/x
  3. Step 3: Cross multiply
    1,520,297.60x = 2,279,134.20 × 772,343.60
  4. Step 4: Simplify right side
    1,520,297.60x = 1,760,274,712,911.12
  5. Step 5: Solve for x
    x = 1,760,274,712,911.12/1,520,297.60
  6. Step 6: Final answer
    x = 1,157,848.77

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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.