Finding the Fourth Proportional to 659,675.10, 989,840.70 and 260,328.90
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Solution
The fourth proportional to 659,675.10, 989,840.70 and 260,328.90 is: 390,622.81
Step by Step Solution
- Step 1: Write the proportion equation
659,675.10 : 989,840.70 = 260,328.90 : x - Step 2: Convert to fraction form
659,675.10/989,840.70 = 260,328.90/x - Step 3: Cross multiply
659,675.10x = 989,840.70 × 260,328.90 - Step 4: Simplify right side
659,675.10x = 257,684,140,606.23 - Step 5: Solve for x
x = 257,684,140,606.23/659,675.10 - Step 6: Final answer
x = 390,622.81
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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.