Home / 919,175.39-1,378,761.03-437,942.45

Finding the Fourth Proportional to 919,175.39, 1,378,761.03 and 437,942.45

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Solution

The fourth proportional to 919,175.39, 1,378,761.03 and 437,942.45 is: 656,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,175.39 : 1,378,761.03 = 437,942.45 : x
  2. Step 2: Convert to fraction form
    919,175.39/1,378,761.03 = 437,942.45/x
  3. Step 3: Cross multiply
    919,175.39x = 1,378,761.03 × 437,942.45
  4. Step 4: Simplify right side
    919,175.39x = 603,817,983,442.72
  5. Step 5: Solve for x
    x = 603,817,983,442.72/919,175.39
  6. Step 6: Final answer
    x = 656,912.70

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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.