Home / 1,179,639.20-1,769,458.80-646,954.40

Finding the Fourth Proportional to 1,179,639.20, 1,769,458.80 and 646,954.40

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Solution

The fourth proportional to 1,179,639.20, 1,769,458.80 and 646,954.40 is: 970,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,639.20 : 1,769,458.80 = 646,954.40 : x
  2. Step 2: Convert to fraction form
    1,179,639.20/1,769,458.80 = 646,954.40/x
  3. Step 3: Cross multiply
    1,179,639.20x = 1,769,458.80 × 646,954.40
  4. Step 4: Simplify right side
    1,179,639.20x = 1,144,759,156,278.72
  5. Step 5: Solve for x
    x = 1,144,759,156,278.72/1,179,639.20
  6. Step 6: Final answer
    x = 970,431.60

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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.