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Finding the Fourth Proportional to 1,361,978.52, 1,879,515.18 and 750,119.64

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Solution

The fourth proportional to 1,361,978.52, 1,879,515.18 and 750,119.64 is: 1,035,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,978.52 : 1,879,515.18 = 750,119.64 : x
  2. Step 2: Convert to fraction form
    1,361,978.52/1,879,515.18 = 750,119.64/x
  3. Step 3: Cross multiply
    1,361,978.52x = 1,879,515.18 × 750,119.64
  4. Step 4: Simplify right side
    1,361,978.52x = 1,409,861,250,196.14
  5. Step 5: Solve for x
    x = 1,409,861,250,196.14/1,361,978.52
  6. Step 6: Final answer
    x = 1,035,156.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.