Finding the Fourth Proportional to 1,432,790.55, 1,975,893.84 and 916,707.75
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Solution
The fourth proportional to 1,432,790.55, 1,975,893.84 and 916,707.75 is: 1,264,188.40
Step by Step Solution
- Step 1: Write the proportion equation
1,432,790.55 : 1,975,893.84 = 916,707.75 : x - Step 2: Convert to fraction form
1,432,790.55/1,975,893.84 = 916,707.75/x - Step 3: Cross multiply
1,432,790.55x = 1,975,893.84 × 916,707.75 - Step 4: Simplify right side
1,432,790.55x = 1,811,317,196,305.26 - Step 5: Solve for x
x = 1,811,317,196,305.26/1,432,790.55 - Step 6: Final answer
x = 1,264,188.40
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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.