Finding the Fourth Proportional to 1,387,674.12, 1,915,310.34 and 903,396
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Solution
The fourth proportional to 1,387,674.12, 1,915,310.34 and 903,396 is: 1,246,894.84
Step by Step Solution
- Step 1: Write the proportion equation
1,387,674.12 : 1,915,310.34 = 903,396 : x - Step 2: Convert to fraction form
1,387,674.12/1,915,310.34 = 903,396/x - Step 3: Cross multiply
1,387,674.12x = 1,915,310.34 × 903,396 - Step 4: Simplify right side
1,387,674.12x = 1,730,283,699,914.64 - Step 5: Solve for x
x = 1,730,283,699,914.64/1,387,674.12 - Step 6: Final answer
x = 1,246,894.84
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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.