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Finding the Fourth Proportional to 646,518.65, 892,204.49 and 360,045.95

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Solution

The fourth proportional to 646,518.65, 892,204.49 and 360,045.95 is: 496,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,518.65 : 892,204.49 = 360,045.95 : x
  2. Step 2: Convert to fraction form
    646,518.65/892,204.49 = 360,045.95/x
  3. Step 3: Cross multiply
    646,518.65x = 892,204.49 × 360,045.95
  4. Step 4: Simplify right side
    646,518.65x = 321,234,611,396.09
  5. Step 5: Solve for x
    x = 321,234,611,396.09/646,518.65
  6. Step 6: Final answer
    x = 496,868.28

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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.