Home / 1,209,483.71-1,668,393.32-755,987.39

Finding the Fourth Proportional to 1,209,483.71, 1,668,393.32 and 755,987.39

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Solution

The fourth proportional to 1,209,483.71, 1,668,393.32 and 755,987.39 is: 1,042,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,483.71 : 1,668,393.32 = 755,987.39 : x
  2. Step 2: Convert to fraction form
    1,209,483.71/1,668,393.32 = 755,987.39/x
  3. Step 3: Cross multiply
    1,209,483.71x = 1,668,393.32 × 755,987.39
  4. Step 4: Simplify right side
    1,209,483.71x = 1,261,284,299,358.33
  5. Step 5: Solve for x
    x = 1,261,284,299,358.33/1,209,483.71
  6. Step 6: Final answer
    x = 1,042,828.68

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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.