Finding the Fourth Proportional to 861,026.08, 1,291,526.16 and 387,376.96
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Solution
The fourth proportional to 861,026.08, 1,291,526.16 and 387,376.96 is: 581,059.61
Step by Step Solution
- Step 1: Write the proportion equation
861,026.08 : 1,291,526.16 = 387,376.96 : x - Step 2: Convert to fraction form
861,026.08/1,291,526.16 = 387,376.96/x - Step 3: Cross multiply
861,026.08x = 1,291,526.16 × 387,376.96 - Step 4: Simplify right side
861,026.08x = 500,307,477,621.27 - Step 5: Solve for x
x = 500,307,477,621.27/861,026.08 - Step 6: Final answer
x = 581,059.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.