Home / 1,453,268.90-2,178,919.20-742,712.60

Finding the Fourth Proportional to 1,453,268.90, 2,178,919.20 and 742,712.60

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Solution

The fourth proportional to 1,453,268.90, 2,178,919.20 and 742,712.60 is: 1,113,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453,268.90 : 2,178,919.20 = 742,712.60 : x
  2. Step 2: Convert to fraction form
    1,453,268.90/2,178,919.20 = 742,712.60/x
  3. Step 3: Cross multiply
    1,453,268.90x = 2,178,919.20 × 742,712.60
  4. Step 4: Simplify right side
    1,453,268.90x = 1,618,310,744,221.92
  5. Step 5: Solve for x
    x = 1,618,310,744,221.92/1,453,268.90
  6. Step 6: Final answer
    x = 1,113,565.94

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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.