Home / 528,431.26-729,212.07-302,091.34

Finding the Fourth Proportional to 528,431.26, 729,212.07 and 302,091.34

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Solution

The fourth proportional to 528,431.26, 729,212.07 and 302,091.34 is: 416,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,431.26 : 729,212.07 = 302,091.34 : x
  2. Step 2: Convert to fraction form
    528,431.26/729,212.07 = 302,091.34/x
  3. Step 3: Cross multiply
    528,431.26x = 729,212.07 × 302,091.34
  4. Step 4: Simplify right side
    528,431.26x = 220,288,651,370.47
  5. Step 5: Solve for x
    x = 220,288,651,370.47/528,431.26
  6. Step 6: Final answer
    x = 416,872.86

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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.