Finding the Fourth Proportional to 790,139.31, 1,090,395.14 and 427,563.18
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Solution
The fourth proportional to 790,139.31, 1,090,395.14 and 427,563.18 is: 590,038.75
Step by Step Solution
- Step 1: Write the proportion equation
790,139.31 : 1,090,395.14 = 427,563.18 : x - Step 2: Convert to fraction form
790,139.31/1,090,395.14 = 427,563.18/x - Step 3: Cross multiply
790,139.31x = 1,090,395.14 × 427,563.18 - Step 4: Simplify right side
790,139.31x = 466,212,813,514.95 - Step 5: Solve for x
x = 466,212,813,514.95/790,139.31 - Step 6: Final answer
x = 590,038.75
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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.