Home / 751,274.91-1,036,557.63-428,920.83

Finding the Fourth Proportional to 751,274.91, 1,036,557.63 and 428,920.83

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Solution

The fourth proportional to 751,274.91, 1,036,557.63 and 428,920.83 is: 591,795.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,274.91 : 1,036,557.63 = 428,920.83 : x
  2. Step 2: Convert to fraction form
    751,274.91/1,036,557.63 = 428,920.83/x
  3. Step 3: Cross multiply
    751,274.91x = 1,036,557.63 × 428,920.83
  4. Step 4: Simplify right side
    751,274.91x = 444,601,159,002.43
  5. Step 5: Solve for x
    x = 444,601,159,002.43/751,274.91
  6. Step 6: Final answer
    x = 591,795.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.