Finding the Fourth Proportional to 790,177.76, 1,090,437 and 427,593.68
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Solution
The fourth proportional to 790,177.76, 1,090,437 and 427,593.68 is: 590,074.78
Step by Step Solution
- Step 1: Write the proportion equation
790,177.76 : 1,090,437 = 427,593.68 : x - Step 2: Convert to fraction form
790,177.76/1,090,437 = 427,593.68/x - Step 3: Cross multiply
790,177.76x = 1,090,437 × 427,593.68 - Step 4: Simplify right side
790,177.76x = 466,263,969,638.16 - Step 5: Solve for x
x = 466,263,969,638.16/790,177.76 - Step 6: Final answer
x = 590,074.78
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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.