Finding the Fourth Proportional to 1,378,732.92, 2,068,154.99 and 480,265.53
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Solution
The fourth proportional to 1,378,732.92, 2,068,154.99 and 480,265.53 is: 720,417.67
Step by Step Solution
- Step 1: Write the proportion equation
1,378,732.92 : 2,068,154.99 = 480,265.53 : x - Step 2: Convert to fraction form
1,378,732.92/2,068,154.99 = 480,265.53/x - Step 3: Cross multiply
1,378,732.92x = 2,068,154.99 × 480,265.53 - Step 4: Simplify right side
1,378,732.92x = 993,263,552,394.50 - Step 5: Solve for x
x = 993,263,552,394.50/1,378,732.92 - Step 6: Final answer
x = 720,417.67
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1.5x scale
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.