Finding the Fourth Proportional to 703,631.13, 971,007.12 and 381,337.80
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Solution
The fourth proportional to 703,631.13, 971,007.12 and 381,337.80 is: 526,244.08
Step by Step Solution
- Step 1: Write the proportion equation
703,631.13 : 971,007.12 = 381,337.80 : x - Step 2: Convert to fraction form
703,631.13/971,007.12 = 381,337.80/x - Step 3: Cross multiply
703,631.13x = 971,007.12 × 381,337.80 - Step 4: Simplify right side
703,631.13x = 370,281,718,925.14 - Step 5: Solve for x
x = 370,281,718,925.14/703,631.13 - Step 6: Final answer
x = 526,244.08
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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.