Home / 1,287,852.47-1,777,147.50-714,847.53

Finding the Fourth Proportional to 1,287,852.47, 1,777,147.50 and 714,847.53

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Solution

The fourth proportional to 1,287,852.47, 1,777,147.50 and 714,847.53 is: 986,440.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,852.47 : 1,777,147.50 = 714,847.53 : x
  2. Step 2: Convert to fraction form
    1,287,852.47/1,777,147.50 = 714,847.53/x
  3. Step 3: Cross multiply
    1,287,852.47x = 1,777,147.50 × 714,847.53
  4. Step 4: Simplify right side
    1,287,852.47x = 1,270,389,500,820.68
  5. Step 5: Solve for x
    x = 1,270,389,500,820.68/1,287,852.47
  6. Step 6: Final answer
    x = 986,440.24

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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.