Home / 430,468.36-645,700.38-110,619.88

Finding the Fourth Proportional to 430,468.36, 645,700.38 and 110,619.88

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Solution

The fourth proportional to 430,468.36, 645,700.38 and 110,619.88 is: 165,929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,468.36 : 645,700.38 = 110,619.88 : x
  2. Step 2: Convert to fraction form
    430,468.36/645,700.38 = 110,619.88/x
  3. Step 3: Cross multiply
    430,468.36x = 645,700.38 × 110,619.88
  4. Step 4: Simplify right side
    430,468.36x = 71,427,298,551.55
  5. Step 5: Solve for x
    x = 71,427,298,551.55/430,468.36
  6. Step 6: Final answer
    x = 165,929.26

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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.