Home / 910,085.40-1,365,128.10-892,370.70

Finding the Fourth Proportional to 910,085.40, 1,365,128.10 and 892,370.70

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Solution

The fourth proportional to 910,085.40, 1,365,128.10 and 892,370.70 is: 1,338,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,085.40 : 1,365,128.10 = 892,370.70 : x
  2. Step 2: Convert to fraction form
    910,085.40/1,365,128.10 = 892,370.70/x
  3. Step 3: Cross multiply
    910,085.40x = 1,365,128.10 × 892,370.70
  4. Step 4: Simplify right side
    910,085.40x = 1,218,200,318,186.67
  5. Step 5: Solve for x
    x = 1,218,200,318,186.67/910,085.40
  6. Step 6: Final answer
    x = 1,338,556.05

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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.