Finding the Fourth Proportional to 836,332.80, 1,253,116.80 and 711,916.80
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Solution
The fourth proportional to 836,332.80, 1,253,116.80 and 711,916.80 is: 1,066,698.45
Step by Step Solution
- Step 1: Write the proportion equation
836,332.80 : 1,253,116.80 = 711,916.80 : x - Step 2: Convert to fraction form
836,332.80/1,253,116.80 = 711,916.80/x - Step 3: Cross multiply
836,332.80x = 1,253,116.80 × 711,916.80 - Step 4: Simplify right side
836,332.80x = 892,114,902,282.24 - Step 5: Solve for x
x = 892,114,902,282.24/836,332.80 - Step 6: Final answer
x = 1,066,698.45
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1.5x scale
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.