Finding the Fourth Proportional to 1,136,332.18, 1,574,910.64 and 1,115,074.54
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Solution
The fourth proportional to 1,136,332.18, 1,574,910.64 and 1,115,074.54 is: 1,545,448.41
Step by Step Solution
- Step 1: Write the proportion equation
1,136,332.18 : 1,574,910.64 = 1,115,074.54 : x - Step 2: Convert to fraction form
1,136,332.18/1,574,910.64 = 1,115,074.54/x - Step 3: Cross multiply
1,136,332.18x = 1,574,910.64 × 1,115,074.54 - Step 4: Simplify right side
1,136,332.18x = 1,756,142,757,439.11 - Step 5: Solve for x
x = 1,756,142,757,439.11/1,136,332.18 - Step 6: Final answer
x = 1,545,448.41
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.