Finding the Fourth Proportional to 1,690,206.12, 2,332,486.50 and 915,836.36
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Solution
The fourth proportional to 1,690,206.12, 2,332,486.50 and 915,836.36 is: 1,263,855.29
Step by Step Solution
- Step 1: Write the proportion equation
1,690,206.12 : 2,332,486.50 = 915,836.36 : x - Step 2: Convert to fraction form
1,690,206.12/2,332,486.50 = 915,836.36/x - Step 3: Cross multiply
1,690,206.12x = 2,332,486.50 × 915,836.36 - Step 4: Simplify right side
1,690,206.12x = 2,136,175,945,909.14 - Step 5: Solve for x
x = 2,136,175,945,909.14/1,690,206.12 - Step 6: Final answer
x = 1,263,855.29
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.