Home / 818,543.83-1,228,005.69-257,563.75

Finding the Fourth Proportional to 818,543.83, 1,228,005.69 and 257,563.75

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Solution

The fourth proportional to 818,543.83, 1,228,005.69 and 257,563.75 is: 386,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,543.83 : 1,228,005.69 = 257,563.75 : x
  2. Step 2: Convert to fraction form
    818,543.83/1,228,005.69 = 257,563.75/x
  3. Step 3: Cross multiply
    818,543.83x = 1,228,005.69 × 257,563.75
  4. Step 4: Simplify right side
    818,543.83x = 316,289,750,537.74
  5. Step 5: Solve for x
    x = 316,289,750,537.74/818,543.83
  6. Step 6: Final answer
    x = 386,405.39

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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.