Home / 1,109,869.20-1,664,496.60-445,088.40

Finding the Fourth Proportional to 1,109,869.20, 1,664,496.60 and 445,088.40

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Solution

The fourth proportional to 1,109,869.20, 1,664,496.60 and 445,088.40 is: 667,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,869.20 : 1,664,496.60 = 445,088.40 : x
  2. Step 2: Convert to fraction form
    1,109,869.20/1,664,496.60 = 445,088.40/x
  3. Step 3: Cross multiply
    1,109,869.20x = 1,664,496.60 × 445,088.40
  4. Step 4: Simplify right side
    1,109,869.20x = 740,848,128,499.44
  5. Step 5: Solve for x
    x = 740,848,128,499.44/1,109,869.20
  6. Step 6: Final answer
    x = 667,509.40

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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.