Home / 1,287,171-1,776,295.98-714,303.36

Finding the Fourth Proportional to 1,287,171, 1,776,295.98 and 714,303.36

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Solution

The fourth proportional to 1,287,171, 1,776,295.98 and 714,303.36 is: 985,738.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,171 : 1,776,295.98 = 714,303.36 : x
  2. Step 2: Convert to fraction form
    1,287,171/1,776,295.98 = 714,303.36/x
  3. Step 3: Cross multiply
    1,287,171x = 1,776,295.98 × 714,303.36
  4. Step 4: Simplify right side
    1,287,171x = 1,268,814,186,868.49
  5. Step 5: Solve for x
    x = 1,268,814,186,868.49/1,287,171
  6. Step 6: Final answer
    x = 985,738.64

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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.