Finding the Fourth Proportional to 1,678,842.72, 2,317,474.80 and 999,648
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Solution
The fourth proportional to 1,678,842.72, 2,317,474.80 and 999,648 is: 1,379,914.28
Step by Step Solution
- Step 1: Write the proportion equation
1,678,842.72 : 2,317,474.80 = 999,648 : x - Step 2: Convert to fraction form
1,678,842.72/2,317,474.80 = 999,648/x - Step 3: Cross multiply
1,678,842.72x = 2,317,474.80 × 999,648 - Step 4: Simplify right side
1,678,842.72x = 2,316,659,048,870.40 - Step 5: Solve for x
x = 2,316,659,048,870.40/1,678,842.72 - Step 6: Final answer
x = 1,379,914.28
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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.