Finding the Fourth Proportional to 691,725.96, 1,030,712.45 and 616,266.23
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Solution
The fourth proportional to 691,725.96, 1,030,712.45 and 616,266.23 is: 918,272.99
Step by Step Solution
- Step 1: Write the proportion equation
691,725.96 : 1,030,712.45 = 616,266.23 : x - Step 2: Convert to fraction form
691,725.96/1,030,712.45 = 616,266.23/x - Step 3: Cross multiply
691,725.96x = 1,030,712.45 × 616,266.23 - Step 4: Simplify right side
691,725.96x = 635,193,267,540.67 - Step 5: Solve for x
x = 635,193,267,540.67/691,725.96 - Step 6: Final answer
x = 918,272.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.