Home / 1,426,872.72-2,140,638.48-480,220.32

Finding the Fourth Proportional to 1,426,872.72, 2,140,638.48 and 480,220.32

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Solution

The fourth proportional to 1,426,872.72, 2,140,638.48 and 480,220.32 is: 720,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,872.72 : 2,140,638.48 = 480,220.32 : x
  2. Step 2: Convert to fraction form
    1,426,872.72/2,140,638.48 = 480,220.32/x
  3. Step 3: Cross multiply
    1,426,872.72x = 2,140,638.48 × 480,220.32
  4. Step 4: Simplify right side
    1,426,872.72x = 1,027,978,095,869.91
  5. Step 5: Solve for x
    x = 1,027,978,095,869.91/1,426,872.72
  6. Step 6: Final answer
    x = 720,441.34

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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.