Home / 902,766.70-1,245,950.67-520,718.86

Finding the Fourth Proportional to 902,766.70, 1,245,950.67 and 520,718.86

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Solution

The fourth proportional to 902,766.70, 1,245,950.67 and 520,718.86 is: 718,668.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,766.70 : 1,245,950.67 = 520,718.86 : x
  2. Step 2: Convert to fraction form
    902,766.70/1,245,950.67 = 520,718.86/x
  3. Step 3: Cross multiply
    902,766.70x = 1,245,950.67 × 520,718.86
  4. Step 4: Simplify right side
    902,766.70x = 648,790,012,498.64
  5. Step 5: Solve for x
    x = 648,790,012,498.64/902,766.70
  6. Step 6: Final answer
    x = 718,668.52

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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.