Finding the Fourth Proportional to 1,565,703.94, 2,160,634.62 and 921,165.62
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Solution
The fourth proportional to 1,565,703.94, 2,160,634.62 and 921,165.62 is: 1,271,186.89
Step by Step Solution
- Step 1: Write the proportion equation
1,565,703.94 : 2,160,634.62 = 921,165.62 : x - Step 2: Convert to fraction form
1,565,703.94/2,160,634.62 = 921,165.62/x - Step 3: Cross multiply
1,565,703.94x = 2,160,634.62 × 921,165.62 - Step 4: Simplify right side
1,565,703.94x = 1,990,302,329,325.76 - Step 5: Solve for x
x = 1,990,302,329,325.76/1,565,703.94 - Step 6: Final answer
x = 1,271,186.89
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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.