Home / 465,279.12-642,055.61-261,324.77

Finding the Fourth Proportional to 465,279.12, 642,055.61 and 261,324.77

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Solution

The fourth proportional to 465,279.12, 642,055.61 and 261,324.77 is: 360,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,279.12 : 642,055.61 = 261,324.77 : x
  2. Step 2: Convert to fraction form
    465,279.12/642,055.61 = 261,324.77/x
  3. Step 3: Cross multiply
    465,279.12x = 642,055.61 × 261,324.77
  4. Step 4: Simplify right side
    465,279.12x = 167,785,032,053.49
  5. Step 5: Solve for x
    x = 167,785,032,053.49/465,279.12
  6. Step 6: Final answer
    x = 360,611.57

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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.