Home / 1,027,173.89-1,539,925.86-428,581.06

Finding the Fourth Proportional to 1,027,173.89, 1,539,925.86 and 428,581.06

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Solution

The fourth proportional to 1,027,173.89, 1,539,925.86 and 428,581.06 is: 642,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,173.89 : 1,539,925.86 = 428,581.06 : x
  2. Step 2: Convert to fraction form
    1,027,173.89/1,539,925.86 = 428,581.06/x
  3. Step 3: Cross multiply
    1,027,173.89x = 1,539,925.86 × 428,581.06
  4. Step 4: Simplify right side
    1,027,173.89x = 659,983,055,157.58
  5. Step 5: Solve for x
    x = 659,983,055,157.58/1,027,173.89
  6. Step 6: Final answer
    x = 642,523.20

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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.