Finding the Fourth Proportional to 703,715.81, 971,122.35 and 381,417.62
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Solution
The fourth proportional to 703,715.81, 971,122.35 and 381,417.62 is: 526,353.35
Step by Step Solution
- Step 1: Write the proportion equation
703,715.81 : 971,122.35 = 381,417.62 : x - Step 2: Convert to fraction form
703,715.81/971,122.35 = 381,417.62/x - Step 3: Cross multiply
703,715.81x = 971,122.35 × 381,417.62 - Step 4: Simplify right side
703,715.81x = 370,403,175,465.81 - Step 5: Solve for x
x = 370,403,175,465.81/703,715.81 - Step 6: Final answer
x = 526,353.35
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1.5x scale
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.