Home / 1,319,411.41-1,820,791.28-715,799.41

Finding the Fourth Proportional to 1,319,411.41, 1,820,791.28 and 715,799.41

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Solution

The fourth proportional to 1,319,411.41, 1,820,791.28 and 715,799.41 is: 987,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,411.41 : 1,820,791.28 = 715,799.41 : x
  2. Step 2: Convert to fraction form
    1,319,411.41/1,820,791.28 = 715,799.41/x
  3. Step 3: Cross multiply
    1,319,411.41x = 1,820,791.28 × 715,799.41
  4. Step 4: Simplify right side
    1,319,411.41x = 1,303,321,323,957.14
  5. Step 5: Solve for x
    x = 1,303,321,323,957.14/1,319,411.41
  6. Step 6: Final answer
    x = 987,805.10

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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.