Finding the Fourth Proportional to 1,758,678.40, 2,637,542.96 and 621,290.84
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Solution
The fourth proportional to 1,758,678.40, 2,637,542.96 and 621,290.84 is: 931,768.58
Step by Step Solution
- Step 1: Write the proportion equation
1,758,678.40 : 2,637,542.96 = 621,290.84 : x - Step 2: Convert to fraction form
1,758,678.40/2,637,542.96 = 621,290.84/x - Step 3: Cross multiply
1,758,678.40x = 2,637,542.96 × 621,290.84 - Step 4: Simplify right side
1,758,678.40x = 1,638,681,281,154.49 - Step 5: Solve for x
x = 1,638,681,281,154.49/1,758,678.40 - Step 6: Final answer
x = 931,768.58
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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.