Finding the Fourth Proportional to 746,062.08, 1,119,423.60 and 390,991.68
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Solution
The fourth proportional to 746,062.08, 1,119,423.60 and 390,991.68 is: 586,660.72
Step by Step Solution
- Step 1: Write the proportion equation
746,062.08 : 1,119,423.60 = 390,991.68 : x - Step 2: Convert to fraction form
746,062.08/1,119,423.60 = 390,991.68/x - Step 3: Cross multiply
746,062.08x = 1,119,423.60 × 390,991.68 - Step 4: Simplify right side
746,062.08x = 437,685,313,995.65 - Step 5: Solve for x
x = 437,685,313,995.65/746,062.08 - Step 6: Final answer
x = 586,660.72
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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.