Home / 860,898.74-1,187,719.36-538,486.34

Finding the Fourth Proportional to 860,898.74, 1,187,719.36 and 538,486.34

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Solution

The fourth proportional to 860,898.74, 1,187,719.36 and 538,486.34 is: 742,910.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,898.74 : 1,187,719.36 = 538,486.34 : x
  2. Step 2: Convert to fraction form
    860,898.74/1,187,719.36 = 538,486.34/x
  3. Step 3: Cross multiply
    860,898.74x = 1,187,719.36 × 538,486.34
  4. Step 4: Simplify right side
    860,898.74x = 639,570,651,113.54
  5. Step 5: Solve for x
    x = 639,570,651,113.54/860,898.74
  6. Step 6: Final answer
    x = 742,910.43

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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.