Home / 818,161.02-1,227,752.64-312,764.76

Finding the Fourth Proportional to 818,161.02, 1,227,752.64 and 312,764.76

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Solution

The fourth proportional to 818,161.02, 1,227,752.64 and 312,764.76 is: 469,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,161.02 : 1,227,752.64 = 312,764.76 : x
  2. Step 2: Convert to fraction form
    818,161.02/1,227,752.64 = 312,764.76/x
  3. Step 3: Cross multiply
    818,161.02x = 1,227,752.64 × 312,764.76
  4. Step 4: Simplify right side
    818,161.02x = 383,997,759,788.97
  5. Step 5: Solve for x
    x = 383,997,759,788.97/818,161.02
  6. Step 6: Final answer
    x = 469,342.53

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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.