Finding the Fourth Proportional to 1,071,638.08, 1,478,855.35 and 588,211.45
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Solution
The fourth proportional to 1,071,638.08, 1,478,855.35 and 588,211.45 is: 811,728.95
Step by Step Solution
- Step 1: Write the proportion equation
1,071,638.08 : 1,478,855.35 = 588,211.45 : x - Step 2: Convert to fraction form
1,071,638.08/1,478,855.35 = 588,211.45/x - Step 3: Cross multiply
1,071,638.08x = 1,478,855.35 × 588,211.45 - Step 4: Simplify right side
1,071,638.08x = 869,879,649,763.76 - Step 5: Solve for x
x = 869,879,649,763.76/1,071,638.08 - Step 6: Final answer
x = 811,728.95
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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.