Home / 1,287,853.38-1,777,148.75-714,848.45

Finding the Fourth Proportional to 1,287,853.38, 1,777,148.75 and 714,848.45

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Solution

The fourth proportional to 1,287,853.38, 1,777,148.75 and 714,848.45 is: 986,441.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,853.38 : 1,777,148.75 = 714,848.45 : x
  2. Step 2: Convert to fraction form
    1,287,853.38/1,777,148.75 = 714,848.45/x
  3. Step 3: Cross multiply
    1,287,853.38x = 1,777,148.75 × 714,848.45
  4. Step 4: Simplify right side
    1,287,853.38x = 1,270,392,016,896.95
  5. Step 5: Solve for x
    x = 1,270,392,016,896.95/1,287,853.38
  6. Step 6: Final answer
    x = 986,441.50

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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.