Finding the Fourth Proportional to 826,372.95, 1,140,250.68 and 463,812.09
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Solution
The fourth proportional to 826,372.95, 1,140,250.68 and 463,812.09 is: 639,979.87
Step by Step Solution
- Step 1: Write the proportion equation
826,372.95 : 1,140,250.68 = 463,812.09 : x - Step 2: Convert to fraction form
826,372.95/1,140,250.68 = 463,812.09/x - Step 3: Cross multiply
826,372.95x = 1,140,250.68 × 463,812.09 - Step 4: Simplify right side
826,372.95x = 528,862,051,014.72 - Step 5: Solve for x
x = 528,862,051,014.72/826,372.95 - Step 6: Final answer
x = 639,979.87
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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.