Home / 1,109,743.20-1,664,614.80-435,600.45

Finding the Fourth Proportional to 1,109,743.20, 1,664,614.80 and 435,600.45

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Solution

The fourth proportional to 1,109,743.20, 1,664,614.80 and 435,600.45 is: 653,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,743.20 : 1,664,614.80 = 435,600.45 : x
  2. Step 2: Convert to fraction form
    1,109,743.20/1,664,614.80 = 435,600.45/x
  3. Step 3: Cross multiply
    1,109,743.20x = 1,664,614.80 × 435,600.45
  4. Step 4: Simplify right side
    1,109,743.20x = 725,106,955,956.66
  5. Step 5: Solve for x
    x = 725,106,955,956.66/1,109,743.20
  6. Step 6: Final answer
    x = 653,400.68

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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.