Finding the Fourth Proportional to 1,565,694.60, 2,160,621.99 and 921,156.36
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Solution
The fourth proportional to 1,565,694.60, 2,160,621.99 and 921,156.36 is: 1,271,174.27
Step by Step Solution
- Step 1: Write the proportion equation
1,565,694.60 : 2,160,621.99 = 921,156.36 : x - Step 2: Convert to fraction form
1,565,694.60/2,160,621.99 = 921,156.36/x - Step 3: Cross multiply
1,565,694.60x = 2,160,621.99 × 921,156.36 - Step 4: Simplify right side
1,565,694.60x = 1,990,270,687,644.36 - Step 5: Solve for x
x = 1,990,270,687,644.36/1,565,694.60 - Step 6: Final answer
x = 1,271,174.27
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.