Home / 851,885.97-1,175,511.87-469,912.77

Finding the Fourth Proportional to 851,885.97, 1,175,511.87 and 469,912.77

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Solution

The fourth proportional to 851,885.97, 1,175,511.87 and 469,912.77 is: 648,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,885.97 : 1,175,511.87 = 469,912.77 : x
  2. Step 2: Convert to fraction form
    851,885.97/1,175,511.87 = 469,912.77/x
  3. Step 3: Cross multiply
    851,885.97x = 1,175,511.87 × 469,912.77
  4. Step 4: Simplify right side
    851,885.97x = 552,388,038,999.58
  5. Step 5: Solve for x
    x = 552,388,038,999.58/851,885.97
  6. Step 6: Final answer
    x = 648,429.55

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1.5x scale

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.