Finding the Fourth Proportional to 536,409.36, 740,366.88 and 355,128.08
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Solution
The fourth proportional to 536,409.36, 740,366.88 and 355,128.08 is: 490,157.50
Step by Step Solution
- Step 1: Write the proportion equation
536,409.36 : 740,366.88 = 355,128.08 : x - Step 2: Convert to fraction form
536,409.36/740,366.88 = 355,128.08/x - Step 3: Cross multiply
536,409.36x = 740,366.88 × 355,128.08 - Step 4: Simplify right side
536,409.36x = 262,925,068,589.99 - Step 5: Solve for x
x = 262,925,068,589.99/536,409.36 - Step 6: Final answer
x = 490,157.50
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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.