Home / 445,279.20-666,606.60-295,688.40

Finding the Fourth Proportional to 445,279.20, 666,606.60 and 295,688.40

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Solution

The fourth proportional to 445,279.20, 666,606.60 and 295,688.40 is: 442,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,279.20 : 666,606.60 = 295,688.40 : x
  2. Step 2: Convert to fraction form
    445,279.20/666,606.60 = 295,688.40/x
  3. Step 3: Cross multiply
    445,279.20x = 666,606.60 × 295,688.40
  4. Step 4: Simplify right side
    445,279.20x = 197,107,838,983.44
  5. Step 5: Solve for x
    x = 197,107,838,983.44/445,279.20
  6. Step 6: Final answer
    x = 442,661.23

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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.