Finding the Fourth Proportional to 3,685,920.42, 5,528,506.95 and 989,895.36
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Solution
The fourth proportional to 3,685,920.42, 5,528,506.95 and 989,895.36 is: 1,484,742.68
Step by Step Solution
- Step 1: Write the proportion equation
3,685,920.42 : 5,528,506.95 = 989,895.36 : x - Step 2: Convert to fraction form
3,685,920.42/5,528,506.95 = 989,895.36/x - Step 3: Cross multiply
3,685,920.42x = 5,528,506.95 × 989,895.36 - Step 4: Simplify right side
3,685,920.42x = 5,472,643,377,532.75 - Step 5: Solve for x
x = 5,472,643,377,532.75/3,685,920.42 - Step 6: Final answer
x = 1,484,742.68
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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.