Home / 685,820.22-946,399.02-379,875.96

Finding the Fourth Proportional to 685,820.22, 946,399.02 and 379,875.96

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Solution

The fourth proportional to 685,820.22, 946,399.02 and 379,875.96 is: 524,210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,820.22 : 946,399.02 = 379,875.96 : x
  2. Step 2: Convert to fraction form
    685,820.22/946,399.02 = 379,875.96/x
  3. Step 3: Cross multiply
    685,820.22x = 946,399.02 × 379,875.96
  4. Step 4: Simplify right side
    685,820.22x = 359,514,236,265.56
  5. Step 5: Solve for x
    x = 359,514,236,265.56/685,820.22
  6. Step 6: Final answer
    x = 524,210.61

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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.