Finding the Fourth Proportional to 1,565,696.35, 2,160,624.38 and 921,158.05
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Solution
The fourth proportional to 1,565,696.35, 2,160,624.38 and 921,158.05 is: 1,271,176.58
Step by Step Solution
- Step 1: Write the proportion equation
1,565,696.35 : 2,160,624.38 = 921,158.05 : x - Step 2: Convert to fraction form
1,565,696.35/2,160,624.38 = 921,158.05/x - Step 3: Cross multiply
1,565,696.35x = 2,160,624.38 × 921,158.05 - Step 4: Simplify right side
1,565,696.35x = 1,990,276,536,057.47 - Step 5: Solve for x
x = 1,990,276,536,057.47/1,565,696.35 - Step 6: Final answer
x = 1,271,176.58
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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.