Finding the Fourth Proportional to 624,991.08, 862,483.64 and 353,146.98
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Solution
The fourth proportional to 624,991.08, 862,483.64 and 353,146.98 is: 487,340.54
Step by Step Solution
- Step 1: Write the proportion equation
624,991.08 : 862,483.64 = 353,146.98 : x - Step 2: Convert to fraction form
624,991.08/862,483.64 = 353,146.98/x - Step 3: Cross multiply
624,991.08x = 862,483.64 × 353,146.98 - Step 4: Simplify right side
624,991.08x = 304,583,492,765.41 - Step 5: Solve for x
x = 304,583,492,765.41/624,991.08 - Step 6: Final answer
x = 487,340.54
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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.