Home / 851,615.96-1,277,497.71-312,018.80

Finding the Fourth Proportional to 851,615.96, 1,277,497.71 and 312,018.80

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Solution

The fourth proportional to 851,615.96, 1,277,497.71 and 312,018.80 is: 468,055.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,615.96 : 1,277,497.71 = 312,018.80 : x
  2. Step 2: Convert to fraction form
    851,615.96/1,277,497.71 = 312,018.80/x
  3. Step 3: Cross multiply
    851,615.96x = 1,277,497.71 × 312,018.80
  4. Step 4: Simplify right side
    851,615.96x = 398,603,296,089.46
  5. Step 5: Solve for x
    x = 398,603,296,089.46/851,615.96
  6. Step 6: Final answer
    x = 468,055.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.