Home / 729,087.15-1,005,735.92-427,222.83

Finding the Fourth Proportional to 729,087.15, 1,005,735.92 and 427,222.83

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Solution

The fourth proportional to 729,087.15, 1,005,735.92 and 427,222.83 is: 589,330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,087.15 : 1,005,735.92 = 427,222.83 : x
  2. Step 2: Convert to fraction form
    729,087.15/1,005,735.92 = 427,222.83/x
  3. Step 3: Cross multiply
    729,087.15x = 1,005,735.92 × 427,222.83
  4. Step 4: Simplify right side
    729,087.15x = 429,673,343,838.94
  5. Step 5: Solve for x
    x = 429,673,343,838.94/729,087.15
  6. Step 6: Final answer
    x = 589,330.57

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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.