Finding the Fourth Proportional to 918,855.36, 1,379,135.97 and 469,897.07
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Solution
The fourth proportional to 918,855.36, 1,379,135.97 and 469,897.07 is: 705,281.78
Step by Step Solution
- Step 1: Write the proportion equation
918,855.36 : 1,379,135.97 = 469,897.07 : x - Step 2: Convert to fraction form
918,855.36/1,379,135.97 = 469,897.07/x - Step 3: Cross multiply
918,855.36x = 1,379,135.97 × 469,897.07 - Step 4: Simplify right side
918,855.36x = 648,051,944,538.93 - Step 5: Solve for x
x = 648,051,944,538.93/918,855.36 - Step 6: Final answer
x = 705,281.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.