Home / 1,319,296.69-1,820,632.94-715,684.69

Finding the Fourth Proportional to 1,319,296.69, 1,820,632.94 and 715,684.69

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Solution

The fourth proportional to 1,319,296.69, 1,820,632.94 and 715,684.69 is: 987,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,296.69 : 1,820,632.94 = 715,684.69 : x
  2. Step 2: Convert to fraction form
    1,319,296.69/1,820,632.94 = 715,684.69/x
  3. Step 3: Cross multiply
    1,319,296.69x = 1,820,632.94 × 715,684.69
  4. Step 4: Simplify right side
    1,319,296.69x = 1,302,999,122,648.87
  5. Step 5: Solve for x
    x = 1,302,999,122,648.87/1,319,296.69
  6. Step 6: Final answer
    x = 987,646.78

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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.