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Finding the Fourth Proportional to 668,857.80, 1,003,286.70 and 601,206.60

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Solution

The fourth proportional to 668,857.80, 1,003,286.70 and 601,206.60 is: 901,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,857.80 : 1,003,286.70 = 601,206.60 : x
  2. Step 2: Convert to fraction form
    668,857.80/1,003,286.70 = 601,206.60/x
  3. Step 3: Cross multiply
    668,857.80x = 1,003,286.70 × 601,206.60
  4. Step 4: Simplify right side
    668,857.80x = 603,182,585,732.22
  5. Step 5: Solve for x
    x = 603,182,585,732.22/668,857.80
  6. Step 6: Final answer
    x = 901,809.90

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Similar ratio
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1.5x scale

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.