Home / 1,287,014.85-1,776,080.72-714,053.66

Finding the Fourth Proportional to 1,287,014.85, 1,776,080.72 and 714,053.66

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Solution

The fourth proportional to 1,287,014.85, 1,776,080.72 and 714,053.66 is: 985,394.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,014.85 : 1,776,080.72 = 714,053.66 : x
  2. Step 2: Convert to fraction form
    1,287,014.85/1,776,080.72 = 714,053.66/x
  3. Step 3: Cross multiply
    1,287,014.85x = 1,776,080.72 × 714,053.66
  4. Step 4: Simplify right side
    1,287,014.85x = 1,268,216,926,120.76
  5. Step 5: Solve for x
    x = 1,268,216,926,120.76/1,287,014.85
  6. Step 6: Final answer
    x = 985,394.17

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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.