Finding the Fourth Proportional to 905,583.78, 1,249,654.77 and 542,826.09
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Solution
The fourth proportional to 905,583.78, 1,249,654.77 and 542,826.09 is: 749,069.53
Step by Step Solution
- Step 1: Write the proportion equation
905,583.78 : 1,249,654.77 = 542,826.09 : x - Step 2: Convert to fraction form
905,583.78/1,249,654.77 = 542,826.09/x - Step 3: Cross multiply
905,583.78x = 1,249,654.77 × 542,826.09 - Step 4: Simplify right side
905,583.78x = 678,345,212,648.95 - Step 5: Solve for x
x = 678,345,212,648.95/905,583.78 - Step 6: Final answer
x = 749,069.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.