Home / 817,701.80-1,226,756.86-285,230.60

Finding the Fourth Proportional to 817,701.80, 1,226,756.86 and 285,230.60

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Solution

The fourth proportional to 817,701.80, 1,226,756.86 and 285,230.60 is: 427,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,701.80 : 1,226,756.86 = 285,230.60 : x
  2. Step 2: Convert to fraction form
    817,701.80/1,226,756.86 = 285,230.60/x
  3. Step 3: Cross multiply
    817,701.80x = 1,226,756.86 × 285,230.60
  4. Step 4: Simplify right side
    817,701.80x = 349,908,595,231.92
  5. Step 5: Solve for x
    x = 349,908,595,231.92/817,701.80
  6. Step 6: Final answer
    x = 427,917.12

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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.