Home / 1,426,664.80-2,139,997.20-479,720.80

Finding the Fourth Proportional to 1,426,664.80, 2,139,997.20 and 479,720.80

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Solution

The fourth proportional to 1,426,664.80, 2,139,997.20 and 479,720.80 is: 719,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,664.80 : 2,139,997.20 = 479,720.80 : x
  2. Step 2: Convert to fraction form
    1,426,664.80/2,139,997.20 = 479,720.80/x
  3. Step 3: Cross multiply
    1,426,664.80x = 2,139,997.20 × 479,720.80
  4. Step 4: Simplify right side
    1,426,664.80x = 1,026,601,168,781.76
  5. Step 5: Solve for x
    x = 1,026,601,168,781.76/1,426,664.80
  6. Step 6: Final answer
    x = 719,581.20

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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.