Home / 1,287,838.14-1,777,127.68-714,833.22

Finding the Fourth Proportional to 1,287,838.14, 1,777,127.68 and 714,833.22

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Solution

The fourth proportional to 1,287,838.14, 1,777,127.68 and 714,833.22 is: 986,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,838.14 : 1,777,127.68 = 714,833.22 : x
  2. Step 2: Convert to fraction form
    1,287,838.14/1,777,127.68 = 714,833.22/x
  3. Step 3: Cross multiply
    1,287,838.14x = 1,777,127.68 × 714,833.22
  4. Step 4: Simplify right side
    1,287,838.14x = 1,270,349,901,845.53
  5. Step 5: Solve for x
    x = 1,270,349,901,845.53/1,287,838.14
  6. Step 6: Final answer
    x = 986,420.47

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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.