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Finding the Fourth Proportional to 702,995.75, 970,129.05 and 380,698.37

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Solution

The fourth proportional to 702,995.75, 970,129.05 and 380,698.37 is: 525,361.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,995.75 : 970,129.05 = 380,698.37 : x
  2. Step 2: Convert to fraction form
    702,995.75/970,129.05 = 380,698.37/x
  3. Step 3: Cross multiply
    702,995.75x = 970,129.05 × 380,698.37
  4. Step 4: Simplify right side
    702,995.75x = 369,326,548,024.65
  5. Step 5: Solve for x
    x = 369,326,548,024.65/702,995.75
  6. Step 6: Final answer
    x = 525,361.00

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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.