Home / 825,999.71-1,139,948.31-458,511.44

Finding the Fourth Proportional to 825,999.71, 1,139,948.31 and 458,511.44

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Solution

The fourth proportional to 825,999.71, 1,139,948.31 and 458,511.44 is: 632,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,999.71 : 1,139,948.31 = 458,511.44 : x
  2. Step 2: Convert to fraction form
    825,999.71/1,139,948.31 = 458,511.44/x
  3. Step 3: Cross multiply
    825,999.71x = 1,139,948.31 × 458,511.44
  4. Step 4: Simplify right side
    825,999.71x = 522,679,341,143.67
  5. Step 5: Solve for x
    x = 522,679,341,143.67/825,999.71
  6. Step 6: Final answer
    x = 632,783.93

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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.