Finding the Fourth Proportional to 1,993,603.60, 2,990,842.80 and 645,536.80
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Solution
The fourth proportional to 1,993,603.60, 2,990,842.80 and 645,536.80 is: 968,446.83
Step by Step Solution
- Step 1: Write the proportion equation
1,993,603.60 : 2,990,842.80 = 645,536.80 : x - Step 2: Convert to fraction form
1,993,603.60/2,990,842.80 = 645,536.80/x - Step 3: Cross multiply
1,993,603.60x = 2,990,842.80 × 645,536.80 - Step 4: Simplify right side
1,993,603.60x = 1,930,699,090,415.04 - Step 5: Solve for x
x = 1,930,699,090,415.04/1,993,603.60 - Step 6: Final answer
x = 968,446.83
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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.