Home / 1,284,815.64-1,926,476.40-486,158.88

Finding the Fourth Proportional to 1,284,815.64, 1,926,476.40 and 486,158.88

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Solution

The fourth proportional to 1,284,815.64, 1,926,476.40 and 486,158.88 is: 728,955.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,815.64 : 1,926,476.40 = 486,158.88 : x
  2. Step 2: Convert to fraction form
    1,284,815.64/1,926,476.40 = 486,158.88/x
  3. Step 3: Cross multiply
    1,284,815.64x = 1,926,476.40 × 486,158.88
  4. Step 4: Simplify right side
    1,284,815.64x = 936,573,608,970.43
  5. Step 5: Solve for x
    x = 936,573,608,970.43/1,284,815.64
  6. Step 6: Final answer
    x = 728,955.64

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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.