Home / 1,439,008.54-2,157,790.75-479,126.05

Finding the Fourth Proportional to 1,439,008.54, 2,157,790.75 and 479,126.05

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Solution

The fourth proportional to 1,439,008.54, 2,157,790.75 and 479,126.05 is: 718,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,008.54 : 2,157,790.75 = 479,126.05 : x
  2. Step 2: Convert to fraction form
    1,439,008.54/2,157,790.75 = 479,126.05/x
  3. Step 3: Cross multiply
    1,439,008.54x = 2,157,790.75 × 479,126.05
  4. Step 4: Simplify right side
    1,439,008.54x = 1,033,853,758,774.04
  5. Step 5: Solve for x
    x = 1,033,853,758,774.04/1,439,008.54
  6. Step 6: Final answer
    x = 718,448.66

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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.