Home / 1,619,914.86-2,430,011.82-421,839.36

Finding the Fourth Proportional to 1,619,914.86, 2,430,011.82 and 421,839.36

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Solution

The fourth proportional to 1,619,914.86, 2,430,011.82 and 421,839.36 is: 632,795.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,914.86 : 2,430,011.82 = 421,839.36 : x
  2. Step 2: Convert to fraction form
    1,619,914.86/2,430,011.82 = 421,839.36/x
  3. Step 3: Cross multiply
    1,619,914.86x = 2,430,011.82 × 421,839.36
  4. Step 4: Simplify right side
    1,619,914.86x = 1,025,074,630,941.24
  5. Step 5: Solve for x
    x = 1,025,074,630,941.24/1,619,914.86
  6. Step 6: Final answer
    x = 632,795.37

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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.