Finding the Fourth Proportional to 623,446.23, 933,684.91 and 398,108.68
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Solution
The fourth proportional to 623,446.23, 933,684.91 and 398,108.68 is: 596,215.12
Step by Step Solution
- Step 1: Write the proportion equation
623,446.23 : 933,684.91 = 398,108.68 : x - Step 2: Convert to fraction form
623,446.23/933,684.91 = 398,108.68/x - Step 3: Cross multiply
623,446.23x = 933,684.91 × 398,108.68 - Step 4: Simplify right side
623,446.23x = 371,708,067,056.02 - Step 5: Solve for x
x = 371,708,067,056.02/623,446.23 - Step 6: Final answer
x = 596,215.12
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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.