Home / 479,678.48-719,392.35-142,628.36

Finding the Fourth Proportional to 479,678.48, 719,392.35 and 142,628.36

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Solution

The fourth proportional to 479,678.48, 719,392.35 and 142,628.36 is: 213,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,678.48 : 719,392.35 = 142,628.36 : x
  2. Step 2: Convert to fraction form
    479,678.48/719,392.35 = 142,628.36/x
  3. Step 3: Cross multiply
    479,678.48x = 719,392.35 × 142,628.36
  4. Step 4: Simplify right side
    479,678.48x = 102,605,751,077.05
  5. Step 5: Solve for x
    x = 102,605,751,077.05/479,678.48
  6. Step 6: Final answer
    x = 213,905.26

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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.