Finding the Fourth Proportional to 659,436.60, 989,482.95 and 260,090.40
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Solution
The fourth proportional to 659,436.60, 989,482.95 and 260,090.40 is: 390,264.99
Step by Step Solution
- Step 1: Write the proportion equation
659,436.60 : 989,482.95 = 260,090.40 : x - Step 2: Convert to fraction form
659,436.60/989,482.95 = 260,090.40/x - Step 3: Cross multiply
659,436.60x = 989,482.95 × 260,090.40 - Step 4: Simplify right side
659,436.60x = 257,355,016,258.68 - Step 5: Solve for x
x = 257,355,016,258.68/659,436.60 - Step 6: Final answer
x = 390,264.99
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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.