Home / 430,467.86-645,699.63-110,619.38

Finding the Fourth Proportional to 430,467.86, 645,699.63 and 110,619.38

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Solution

The fourth proportional to 430,467.86, 645,699.63 and 110,619.38 is: 165,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,467.86 : 645,699.63 = 110,619.38 : x
  2. Step 2: Convert to fraction form
    430,467.86/645,699.63 = 110,619.38/x
  3. Step 3: Cross multiply
    430,467.86x = 645,699.63 × 110,619.38
  4. Step 4: Simplify right side
    430,467.86x = 71,426,892,736.83
  5. Step 5: Solve for x
    x = 71,426,892,736.83/430,467.86
  6. Step 6: Final answer
    x = 165,928.51

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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.