Finding the Fourth Proportional to 1,010,352.78, 1,394,286.84 and 688,624.92
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Solution
The fourth proportional to 1,010,352.78, 1,394,286.84 and 688,624.92 is: 950,302.39
Step by Step Solution
- Step 1: Write the proportion equation
1,010,352.78 : 1,394,286.84 = 688,624.92 : x - Step 2: Convert to fraction form
1,010,352.78/1,394,286.84 = 688,624.92/x - Step 3: Cross multiply
1,010,352.78x = 1,394,286.84 × 688,624.92 - Step 4: Simplify right side
1,010,352.78x = 960,140,663,652.05 - Step 5: Solve for x
x = 960,140,663,652.05/1,010,352.78 - Step 6: Final answer
x = 950,302.39
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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.