Finding the Fourth Proportional to 879,921.75, 1,214,292.06 and 477,513.75
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Solution
The fourth proportional to 879,921.75, 1,214,292.06 and 477,513.75 is: 658,969.00
Step by Step Solution
- Step 1: Write the proportion equation
879,921.75 : 1,214,292.06 = 477,513.75 : x - Step 2: Convert to fraction form
879,921.75/1,214,292.06 = 477,513.75/x - Step 3: Cross multiply
879,921.75x = 1,214,292.06 × 477,513.75 - Step 4: Simplify right side
879,921.75x = 579,841,155,165.83 - Step 5: Solve for x
x = 579,841,155,165.83/879,921.75 - Step 6: Final answer
x = 658,969.00
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1.5x scale
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.