Finding the Fourth Proportional to 1,685,407.18, 2,325,861.93 and 921,460.76
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Solution
The fourth proportional to 1,685,407.18, 2,325,861.93 and 921,460.76 is: 1,271,615.86
Step by Step Solution
- Step 1: Write the proportion equation
1,685,407.18 : 2,325,861.93 = 921,460.76 : x - Step 2: Convert to fraction form
1,685,407.18/2,325,861.93 = 921,460.76/x - Step 3: Cross multiply
1,685,407.18x = 2,325,861.93 × 921,460.76 - Step 4: Simplify right side
1,685,407.18x = 2,143,190,501,672.87 - Step 5: Solve for x
x = 2,143,190,501,672.87/1,685,407.18 - Step 6: Final answer
x = 1,271,615.86
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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.