Home / 1,089,429.60-1,633,561.20-457,629.60

Finding the Fourth Proportional to 1,089,429.60, 1,633,561.20 and 457,629.60

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Solution

The fourth proportional to 1,089,429.60, 1,633,561.20 and 457,629.60 is: 686,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,429.60 : 1,633,561.20 = 457,629.60 : x
  2. Step 2: Convert to fraction form
    1,089,429.60/1,633,561.20 = 457,629.60/x
  3. Step 3: Cross multiply
    1,089,429.60x = 1,633,561.20 × 457,629.60
  4. Step 4: Simplify right side
    1,089,429.60x = 747,565,958,531.52
  5. Step 5: Solve for x
    x = 747,565,958,531.52/1,089,429.60
  6. Step 6: Final answer
    x = 686,199.42

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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.