Finding the Fourth Proportional to 1,026,615.74, 1,540,186.42 and 427,377.74
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Solution
The fourth proportional to 1,026,615.74, 1,540,186.42 and 427,377.74 is: 641,176.02
Step by Step Solution
- Step 1: Write the proportion equation
1,026,615.74 : 1,540,186.42 = 427,377.74 : x - Step 2: Convert to fraction form
1,026,615.74/1,540,186.42 = 427,377.74/x - Step 3: Cross multiply
1,026,615.74x = 1,540,186.42 × 427,377.74 - Step 4: Simplify right side
1,026,615.74x = 658,241,391,358.29 - Step 5: Solve for x
x = 658,241,391,358.29/1,026,615.74 - Step 6: Final answer
x = 641,176.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.