Finding the Fourth Proportional to 4,358,916.18, 6,539,369.36 and 1,326,711.76
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Solution
The fourth proportional to 4,358,916.18, 6,539,369.36 and 1,326,711.76 is: 1,990,370.51
Step by Step Solution
- Step 1: Write the proportion equation
4,358,916.18 : 6,539,369.36 = 1,326,711.76 : x - Step 2: Convert to fraction form
4,358,916.18/6,539,369.36 = 1,326,711.76/x - Step 3: Cross multiply
4,358,916.18x = 6,539,369.36 × 1,326,711.76 - Step 4: Simplify right side
4,358,916.18x = 8,675,858,209,913.69 - Step 5: Solve for x
x = 8,675,858,209,913.69/4,358,916.18 - Step 6: Final answer
x = 1,990,370.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.