Home / 430,657.10-645,551.39-270,847.23

Finding the Fourth Proportional to 430,657.10, 645,551.39 and 270,847.23

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Solution

The fourth proportional to 430,657.10, 645,551.39 and 270,847.23 is: 405,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,657.10 : 645,551.39 = 270,847.23 : x
  2. Step 2: Convert to fraction form
    430,657.10/645,551.39 = 270,847.23/x
  3. Step 3: Cross multiply
    430,657.10x = 645,551.39 × 270,847.23
  4. Step 4: Simplify right side
    430,657.10x = 174,845,804,449.91
  5. Step 5: Solve for x
    x = 174,845,804,449.91/430,657.10
  6. Step 6: Final answer
    x = 405,997.73

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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.