Home / 1,287,856.37-1,777,152.89-714,851.44

Finding the Fourth Proportional to 1,287,856.37, 1,777,152.89 and 714,851.44

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Solution

The fourth proportional to 1,287,856.37, 1,777,152.89 and 714,851.44 is: 986,445.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,856.37 : 1,777,152.89 = 714,851.44 : x
  2. Step 2: Convert to fraction form
    1,287,856.37/1,777,152.89 = 714,851.44/x
  3. Step 3: Cross multiply
    1,287,856.37x = 1,777,152.89 × 714,851.44
  4. Step 4: Simplify right side
    1,287,856.37x = 1,270,400,299,860.91
  5. Step 5: Solve for x
    x = 1,270,400,299,860.91/1,287,856.37
  6. Step 6: Final answer
    x = 986,445.64

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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.