Finding the Fourth Proportional to 1,963,412.85, 2,703,342.16 and 1,668,440.39
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Solution
The fourth proportional to 1,963,412.85, 2,703,342.16 and 1,668,440.39 is: 2,297,206.74
Step by Step Solution
- Step 1: Write the proportion equation
1,963,412.85 : 2,703,342.16 = 1,668,440.39 : x - Step 2: Convert to fraction form
1,963,412.85/2,703,342.16 = 1,668,440.39/x - Step 3: Cross multiply
1,963,412.85x = 2,703,342.16 × 1,668,440.39 - Step 4: Simplify right side
1,963,412.85x = 4,510,365,226,917.71 - Step 5: Solve for x
x = 4,510,365,226,917.71/1,963,412.85 - Step 6: Final answer
x = 2,297,206.74
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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.