Home / 770,031.86-1,155,040.44-209,066.36

Finding the Fourth Proportional to 770,031.86, 1,155,040.44 and 209,066.36

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Solution

The fourth proportional to 770,031.86, 1,155,040.44 and 209,066.36 is: 313,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,031.86 : 1,155,040.44 = 209,066.36 : x
  2. Step 2: Convert to fraction form
    770,031.86/1,155,040.44 = 209,066.36/x
  3. Step 3: Cross multiply
    770,031.86x = 1,155,040.44 × 209,066.36
  4. Step 4: Simplify right side
    770,031.86x = 241,480,100,443.60
  5. Step 5: Solve for x
    x = 241,480,100,443.60/770,031.86
  6. Step 6: Final answer
    x = 313,597.54

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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.