Home / 455,117.81-682,750.76-170,830.69

Finding the Fourth Proportional to 455,117.81, 682,750.76 and 170,830.69

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Solution

The fourth proportional to 455,117.81, 682,750.76 and 170,830.69 is: 256,273.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,117.81 : 682,750.76 = 170,830.69 : x
  2. Step 2: Convert to fraction form
    455,117.81/682,750.76 = 170,830.69/x
  3. Step 3: Cross multiply
    455,117.81x = 682,750.76 × 170,830.69
  4. Step 4: Simplify right side
    455,117.81x = 116,634,780,867.79
  5. Step 5: Solve for x
    x = 116,634,780,867.79/455,117.81
  6. Step 6: Final answer
    x = 256,273.83

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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.