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Finding the Fourth Proportional to 984,599.40, 1,476,008.10 and 685,223.40

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Solution

The fourth proportional to 984,599.40, 1,476,008.10 and 685,223.40 is: 1,027,215.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,599.40 : 1,476,008.10 = 685,223.40 : x
  2. Step 2: Convert to fraction form
    984,599.40/1,476,008.10 = 685,223.40/x
  3. Step 3: Cross multiply
    984,599.40x = 1,476,008.10 × 685,223.40
  4. Step 4: Simplify right side
    984,599.40x = 1,011,395,288,709.54
  5. Step 5: Solve for x
    x = 1,011,395,288,709.54/984,599.40
  6. Step 6: Final answer
    x = 1,027,215.02

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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.