Home / 646,896.78-892,723.65-356,518.95

Finding the Fourth Proportional to 646,896.78, 892,723.65 and 356,518.95

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Solution

The fourth proportional to 646,896.78, 892,723.65 and 356,518.95 is: 491,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,896.78 : 892,723.65 = 356,518.95 : x
  2. Step 2: Convert to fraction form
    646,896.78/892,723.65 = 356,518.95/x
  3. Step 3: Cross multiply
    646,896.78x = 892,723.65 × 356,518.95
  4. Step 4: Simplify right side
    646,896.78x = 318,272,898,338.17
  5. Step 5: Solve for x
    x = 318,272,898,338.17/646,896.78
  6. Step 6: Final answer
    x = 491,999.51

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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.