Finding the Fourth Proportional to 1,358,490.79, 1,874,736.70 and 746,700.12
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Solution
The fourth proportional to 1,358,490.79, 1,874,736.70 and 746,700.12 is: 1,030,456.83
Step by Step Solution
- Step 1: Write the proportion equation
1,358,490.79 : 1,874,736.70 = 746,700.12 : x - Step 2: Convert to fraction form
1,358,490.79/1,874,736.70 = 746,700.12/x - Step 3: Cross multiply
1,358,490.79x = 1,874,736.70 × 746,700.12 - Step 4: Simplify right side
1,358,490.79x = 1,399,866,116,991.65 - Step 5: Solve for x
x = 1,399,866,116,991.65/1,358,490.79 - Step 6: Final answer
x = 1,030,456.83
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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.