Home / 892,342.40-1,338,513.60-802,140.80

Finding the Fourth Proportional to 892,342.40, 1,338,513.60 and 802,140.80

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Solution

The fourth proportional to 892,342.40, 1,338,513.60 and 802,140.80 is: 1,203,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,342.40 : 1,338,513.60 = 802,140.80 : x
  2. Step 2: Convert to fraction form
    892,342.40/1,338,513.60 = 802,140.80/x
  3. Step 3: Cross multiply
    892,342.40x = 1,338,513.60 × 802,140.80
  4. Step 4: Simplify right side
    892,342.40x = 1,073,676,369,914.88
  5. Step 5: Solve for x
    x = 1,073,676,369,914.88/892,342.40
  6. Step 6: Final answer
    x = 1,203,211.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.