Home / 1,122,717.99-1,549,352.49-639,283.53

Finding the Fourth Proportional to 1,122,717.99, 1,549,352.49 and 639,283.53

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Solution

The fourth proportional to 1,122,717.99, 1,549,352.49 and 639,283.53 is: 882,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,717.99 : 1,549,352.49 = 639,283.53 : x
  2. Step 2: Convert to fraction form
    1,122,717.99/1,549,352.49 = 639,283.53/x
  3. Step 3: Cross multiply
    1,122,717.99x = 1,549,352.49 × 639,283.53
  4. Step 4: Simplify right side
    1,122,717.99x = 990,475,529,021.49
  5. Step 5: Solve for x
    x = 990,475,529,021.49/1,122,717.99
  6. Step 6: Final answer
    x = 882,212.22

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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.