Home / 1,289,621.75-1,777,802.32-901,231.35

Finding the Fourth Proportional to 1,289,621.75, 1,777,802.32 and 901,231.35

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Solution

The fourth proportional to 1,289,621.75, 1,777,802.32 and 901,231.35 is: 1,242,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,621.75 : 1,777,802.32 = 901,231.35 : x
  2. Step 2: Convert to fraction form
    1,289,621.75/1,777,802.32 = 901,231.35/x
  3. Step 3: Cross multiply
    1,289,621.75x = 1,777,802.32 × 901,231.35
  4. Step 4: Simplify right side
    1,289,621.75x = 1,602,211,186,013.27
  5. Step 5: Solve for x
    x = 1,602,211,186,013.27/1,289,621.75
  6. Step 6: Final answer
    x = 1,242,388.47

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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.