Home / 1,287,030.60-1,776,022.20-714,059.28

Finding the Fourth Proportional to 1,287,030.60, 1,776,022.20 and 714,059.28

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Solution

The fourth proportional to 1,287,030.60, 1,776,022.20 and 714,059.28 is: 985,357.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,030.60 : 1,776,022.20 = 714,059.28 : x
  2. Step 2: Convert to fraction form
    1,287,030.60/1,776,022.20 = 714,059.28/x
  3. Step 3: Cross multiply
    1,287,030.60x = 1,776,022.20 × 714,059.28
  4. Step 4: Simplify right side
    1,287,030.60x = 1,268,185,133,396.02
  5. Step 5: Solve for x
    x = 1,268,185,133,396.02/1,287,030.60
  6. Step 6: Final answer
    x = 985,357.41

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Why These Related Problems?

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