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Finding the Fourth Proportional to 656,448.40, 984,658.20 and 183,120.40

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Solution

The fourth proportional to 656,448.40, 984,658.20 and 183,120.40 is: 274,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,448.40 : 984,658.20 = 183,120.40 : x
  2. Step 2: Convert to fraction form
    656,448.40/984,658.20 = 183,120.40/x
  3. Step 3: Cross multiply
    656,448.40x = 984,658.20 × 183,120.40
  4. Step 4: Simplify right side
    656,448.40x = 180,311,003,447.28
  5. Step 5: Solve for x
    x = 180,311,003,447.28/656,448.40
  6. Step 6: Final answer
    x = 274,676.58

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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.