Finding the Fourth Proportional to 718,989.71, 992,565.35 and 447,145.18
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Solution
The fourth proportional to 718,989.71, 992,565.35 and 447,145.18 is: 617,283.96
Step by Step Solution
- Step 1: Write the proportion equation
718,989.71 : 992,565.35 = 447,145.18 : x - Step 2: Convert to fraction form
718,989.71/992,565.35 = 447,145.18/x - Step 3: Cross multiply
718,989.71x = 992,565.35 × 447,145.18 - Step 4: Simplify right side
718,989.71x = 443,820,812,087.51 - Step 5: Solve for x
x = 443,820,812,087.51/718,989.71 - Step 6: Final answer
x = 617,283.96
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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.