Home / 1,100,243.99-1,649,821.66-390,165.59

Finding the Fourth Proportional to 1,100,243.99, 1,649,821.66 and 390,165.59

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Solution

The fourth proportional to 1,100,243.99, 1,649,821.66 and 390,165.59 is: 585,055.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,243.99 : 1,649,821.66 = 390,165.59 : x
  2. Step 2: Convert to fraction form
    1,100,243.99/1,649,821.66 = 390,165.59/x
  3. Step 3: Cross multiply
    1,100,243.99x = 1,649,821.66 × 390,165.59
  4. Step 4: Simplify right side
    1,100,243.99x = 643,703,632,144.16
  5. Step 5: Solve for x
    x = 643,703,632,144.16/1,100,243.99
  6. Step 6: Final answer
    x = 585,055.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.