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Finding the Fourth Proportional to 485,568.85, 670,077.69 and 270,703.39

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Solution

The fourth proportional to 485,568.85, 670,077.69 and 270,703.39 is: 373,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,568.85 : 670,077.69 = 270,703.39 : x
  2. Step 2: Convert to fraction form
    485,568.85/670,077.69 = 270,703.39/x
  3. Step 3: Cross multiply
    485,568.85x = 670,077.69 × 270,703.39
  4. Step 4: Simplify right side
    485,568.85x = 181,392,302,246.37
  5. Step 5: Solve for x
    x = 181,392,302,246.37/485,568.85
  6. Step 6: Final answer
    x = 373,566.60

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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.