Finding the Fourth Proportional to 774,258.89, 1,161,549.99 and 390,223.58
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Solution
The fourth proportional to 774,258.89, 1,161,549.99 and 390,223.58 is: 585,416.84
Step by Step Solution
- Step 1: Write the proportion equation
774,258.89 : 1,161,549.99 = 390,223.58 : x - Step 2: Convert to fraction form
774,258.89/1,161,549.99 = 390,223.58/x - Step 3: Cross multiply
774,258.89x = 1,161,549.99 × 390,223.58 - Step 4: Simplify right side
774,258.89x = 453,264,189,639.01 - Step 5: Solve for x
x = 453,264,189,639.01/774,258.89 - Step 6: Final answer
x = 585,416.84
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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.