Finding the Fourth Proportional to 728,640.93, 1,090,686.95 and 536,731.70
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Solution
The fourth proportional to 728,640.93, 1,090,686.95 and 536,731.70 is: 803,422.14
Step by Step Solution
- Step 1: Write the proportion equation
728,640.93 : 1,090,686.95 = 536,731.70 : x - Step 2: Convert to fraction form
728,640.93/1,090,686.95 = 536,731.70/x - Step 3: Cross multiply
728,640.93x = 1,090,686.95 × 536,731.70 - Step 4: Simplify right side
728,640.93x = 585,406,252,704.22 - Step 5: Solve for x
x = 585,406,252,704.22/728,640.93 - Step 6: Final answer
x = 803,422.14
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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.