Home / 1,299,159.33-1,792,908.07-783,077.22

Finding the Fourth Proportional to 1,299,159.33, 1,792,908.07 and 783,077.22

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Solution

The fourth proportional to 1,299,159.33, 1,792,908.07 and 783,077.22 is: 1,080,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,159.33 : 1,792,908.07 = 783,077.22 : x
  2. Step 2: Convert to fraction form
    1,299,159.33/1,792,908.07 = 783,077.22/x
  3. Step 3: Cross multiply
    1,299,159.33x = 1,792,908.07 × 783,077.22
  4. Step 4: Simplify right side
    1,299,159.33x = 1,403,985,465,213.47
  5. Step 5: Solve for x
    x = 1,403,985,465,213.47/1,299,159.33
  6. Step 6: Final answer
    x = 1,080,687.67

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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.