Home / 1,122,717.49-1,549,351.80-639,283.03

Finding the Fourth Proportional to 1,122,717.49, 1,549,351.80 and 639,283.03

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Solution

The fourth proportional to 1,122,717.49, 1,549,351.80 and 639,283.03 is: 882,211.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,717.49 : 1,549,351.80 = 639,283.03 : x
  2. Step 2: Convert to fraction form
    1,122,717.49/1,549,351.80 = 639,283.03/x
  3. Step 3: Cross multiply
    1,122,717.49x = 1,549,351.80 × 639,283.03
  4. Step 4: Simplify right side
    1,122,717.49x = 990,474,313,239.95
  5. Step 5: Solve for x
    x = 990,474,313,239.95/1,122,717.49
  6. Step 6: Final answer
    x = 882,211.53

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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.