Home / 678,708.60-1,017,803.70-205,236.60

Finding the Fourth Proportional to 678,708.60, 1,017,803.70 and 205,236.60

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Solution

The fourth proportional to 678,708.60, 1,017,803.70 and 205,236.60 is: 307,776.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,708.60 : 1,017,803.70 = 205,236.60 : x
  2. Step 2: Convert to fraction form
    678,708.60/1,017,803.70 = 205,236.60/x
  3. Step 3: Cross multiply
    678,708.60x = 1,017,803.70 × 205,236.60
  4. Step 4: Simplify right side
    678,708.60x = 208,890,570,855.42
  5. Step 5: Solve for x
    x = 208,890,570,855.42/678,708.60
  6. Step 6: Final answer
    x = 307,776.52

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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.