Finding the Fourth Proportional to 463,990.68, 640,358.46 and 260,074.80
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Solution
The fourth proportional to 463,990.68, 640,358.46 and 260,074.80 is: 358,931.99
Step by Step Solution
- Step 1: Write the proportion equation
463,990.68 : 640,358.46 = 260,074.80 : x - Step 2: Convert to fraction form
463,990.68/640,358.46 = 260,074.80/x - Step 3: Cross multiply
463,990.68x = 640,358.46 × 260,074.80 - Step 4: Simplify right side
463,990.68x = 166,541,098,412.81 - Step 5: Solve for x
x = 166,541,098,412.81/463,990.68 - Step 6: Final answer
x = 358,931.99
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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.