Finding the Fourth Proportional to 866,318.24, 1,298,342.47 and 416,143.43
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Solution
The fourth proportional to 866,318.24, 1,298,342.47 and 416,143.43 is: 623,669.99
Step by Step Solution
- Step 1: Write the proportion equation
866,318.24 : 1,298,342.47 = 416,143.43 : x - Step 2: Convert to fraction form
866,318.24/1,298,342.47 = 416,143.43/x - Step 3: Cross multiply
866,318.24x = 1,298,342.47 × 416,143.43 - Step 4: Simplify right side
866,318.24x = 540,296,688,780.47 - Step 5: Solve for x
x = 540,296,688,780.47/866,318.24 - Step 6: Final answer
x = 623,669.99
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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.