Finding the Fourth Proportional to 1,315,916.99, 1,969,384.54 and 1,102,925.36
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Solution
The fourth proportional to 1,315,916.99, 1,969,384.54 and 1,102,925.36 is: 1,650,623.99
Step by Step Solution
- Step 1: Write the proportion equation
1,315,916.99 : 1,969,384.54 = 1,102,925.36 : x - Step 2: Convert to fraction form
1,315,916.99/1,969,384.54 = 1,102,925.36/x - Step 3: Cross multiply
1,315,916.99x = 1,969,384.54 × 1,102,925.36 - Step 4: Simplify right side
1,315,916.99x = 2,172,084,156,992.07 - Step 5: Solve for x
x = 2,172,084,156,992.07/1,315,916.99 - Step 6: Final answer
x = 1,650,623.99
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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.