Finding the Fourth Proportional to 756,078.10, 1,134,117.15 and 436,776.10
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Solution
The fourth proportional to 756,078.10, 1,134,117.15 and 436,776.10 is: 655,164.15
Step by Step Solution
- Step 1: Write the proportion equation
756,078.10 : 1,134,117.15 = 436,776.10 : x - Step 2: Convert to fraction form
756,078.10/1,134,117.15 = 436,776.10/x - Step 3: Cross multiply
756,078.10x = 1,134,117.15 × 436,776.10 - Step 4: Simplify right side
756,078.10x = 495,355,265,720.12 - Step 5: Solve for x
x = 495,355,265,720.12/756,078.10 - Step 6: Final answer
x = 655,164.15
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Similar ratio
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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.