Finding the Fourth Proportional to 1,438,902.95, 2,158,567.68 and 479,045.06
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Solution
The fourth proportional to 1,438,902.95, 2,158,567.68 and 479,045.06 is: 718,638.58
Step by Step Solution
- Step 1: Write the proportion equation
1,438,902.95 : 2,158,567.68 = 479,045.06 : x - Step 2: Convert to fraction form
1,438,902.95/2,158,567.68 = 479,045.06/x - Step 3: Cross multiply
1,438,902.95x = 2,158,567.68 × 479,045.06 - Step 4: Simplify right side
1,438,902.95x = 1,034,051,172,986.82 - Step 5: Solve for x
x = 1,034,051,172,986.82/1,438,902.95 - Step 6: Final answer
x = 718,638.58
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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.