Home / 1,228,273.94-1,695,021.45-712,127.90

Finding the Fourth Proportional to 1,228,273.94, 1,695,021.45 and 712,127.90

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Solution

The fourth proportional to 1,228,273.94, 1,695,021.45 and 712,127.90 is: 982,738.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,273.94 : 1,695,021.45 = 712,127.90 : x
  2. Step 2: Convert to fraction form
    1,228,273.94/1,695,021.45 = 712,127.90/x
  3. Step 3: Cross multiply
    1,228,273.94x = 1,695,021.45 × 712,127.90
  4. Step 4: Simplify right side
    1,228,273.94x = 1,207,072,065,643.46
  5. Step 5: Solve for x
    x = 1,207,072,065,643.46/1,228,273.94
  6. Step 6: Final answer
    x = 982,738.48

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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.