Finding the Fourth Proportional to 990,922.08, 1,367,479.68 and 538,212.96
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Solution
The fourth proportional to 990,922.08, 1,367,479.68 and 538,212.96 is: 742,737.80
Step by Step Solution
- Step 1: Write the proportion equation
990,922.08 : 1,367,479.68 = 538,212.96 : x - Step 2: Convert to fraction form
990,922.08/1,367,479.68 = 538,212.96/x - Step 3: Cross multiply
990,922.08x = 1,367,479.68 × 538,212.96 - Step 4: Simplify right side
990,922.08x = 735,995,286,312.65 - Step 5: Solve for x
x = 735,995,286,312.65/990,922.08 - Step 6: Final answer
x = 742,737.80
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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.