Home / 651,982.50-899,739.09-380,238.84

Finding the Fourth Proportional to 651,982.50, 899,739.09 and 380,238.84

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Solution

The fourth proportional to 651,982.50, 899,739.09 and 380,238.84 is: 524,731.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,982.50 : 899,739.09 = 380,238.84 : x
  2. Step 2: Convert to fraction form
    651,982.50/899,739.09 = 380,238.84/x
  3. Step 3: Cross multiply
    651,982.50x = 899,739.09 × 380,238.84
  4. Step 4: Simplify right side
    651,982.50x = 342,115,747,884.26
  5. Step 5: Solve for x
    x = 342,115,747,884.26/651,982.50
  6. Step 6: Final answer
    x = 524,731.49

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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.