Home / 485,868.13-670,499.04-271,002.67

Finding the Fourth Proportional to 485,868.13, 670,499.04 and 271,002.67

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Solution

The fourth proportional to 485,868.13, 670,499.04 and 271,002.67 is: 373,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,868.13 : 670,499.04 = 271,002.67 : x
  2. Step 2: Convert to fraction form
    485,868.13/670,499.04 = 271,002.67/x
  3. Step 3: Cross multiply
    485,868.13x = 670,499.04 × 271,002.67
  4. Step 4: Simplify right side
    485,868.13x = 181,707,030,072.44
  5. Step 5: Solve for x
    x = 181,707,030,072.44/485,868.13
  6. Step 6: Final answer
    x = 373,984.25

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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.