Finding the Fourth Proportional to 1,391,855.23, 2,087,270.74 and 480,805.93
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Solution
The fourth proportional to 1,391,855.23, 2,087,270.74 and 480,805.93 is: 721,031.99
Step by Step Solution
- Step 1: Write the proportion equation
1,391,855.23 : 2,087,270.74 = 480,805.93 : x - Step 2: Convert to fraction form
1,391,855.23/2,087,270.74 = 480,805.93/x - Step 3: Cross multiply
1,391,855.23x = 2,087,270.74 × 480,805.93 - Step 4: Simplify right side
1,391,855.23x = 1,003,572,149,307.49 - Step 5: Solve for x
x = 1,003,572,149,307.49/1,391,855.23 - Step 6: Final answer
x = 721,031.99
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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.