Home / 1,287,083.07-1,776,433.14-743,307.39

Finding the Fourth Proportional to 1,287,083.07, 1,776,433.14 and 743,307.39

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Solution

The fourth proportional to 1,287,083.07, 1,776,433.14 and 743,307.39 is: 1,025,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,083.07 : 1,776,433.14 = 743,307.39 : x
  2. Step 2: Convert to fraction form
    1,287,083.07/1,776,433.14 = 743,307.39/x
  3. Step 3: Cross multiply
    1,287,083.07x = 1,776,433.14 × 743,307.39
  4. Step 4: Simplify right side
    1,287,083.07x = 1,320,435,880,802.90
  5. Step 5: Solve for x
    x = 1,320,435,880,802.90/1,287,083.07
  6. Step 6: Final answer
    x = 1,025,913.49

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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.