Finding the Fourth Proportional to 1,313,823.36, 1,970,736.84 and 316,551.36
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Solution
The fourth proportional to 1,313,823.36, 1,970,736.84 and 316,551.36 is: 474,827.47
Step by Step Solution
- Step 1: Write the proportion equation
1,313,823.36 : 1,970,736.84 = 316,551.36 : x - Step 2: Convert to fraction form
1,313,823.36/1,970,736.84 = 316,551.36/x - Step 3: Cross multiply
1,313,823.36x = 1,970,736.84 × 316,551.36 - Step 4: Simplify right side
1,313,823.36x = 623,839,426,904.10 - Step 5: Solve for x
x = 623,839,426,904.10/1,313,823.36 - Step 6: Final answer
x = 474,827.47
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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.