Finding the Fourth Proportional to 1,690,210.95, 2,332,493.13 and 915,841.23
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Solution
The fourth proportional to 1,690,210.95, 2,332,493.13 and 915,841.23 is: 1,263,861.99
Step by Step Solution
- Step 1: Write the proportion equation
1,690,210.95 : 2,332,493.13 = 915,841.23 : x - Step 2: Convert to fraction form
1,690,210.95/2,332,493.13 = 915,841.23/x - Step 3: Cross multiply
1,690,210.95x = 2,332,493.13 × 915,841.23 - Step 4: Simplify right side
1,690,210.95x = 2,136,193,377,145.75 - Step 5: Solve for x
x = 2,136,193,377,145.75/1,690,210.95 - Step 6: Final answer
x = 1,263,861.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.