Finding the Fourth Proportional to 1,384,438.06, 2,073,875.44 and 689,910.04
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Solution
The fourth proportional to 1,384,438.06, 2,073,875.44 and 689,910.04 is: 1,033,478.87
Step by Step Solution
- Step 1: Write the proportion equation
1,384,438.06 : 2,073,875.44 = 689,910.04 : x - Step 2: Convert to fraction form
1,384,438.06/2,073,875.44 = 689,910.04/x - Step 3: Cross multiply
1,384,438.06x = 2,073,875.44 × 689,910.04 - Step 4: Simplify right side
1,384,438.06x = 1,430,787,487,765.42 - Step 5: Solve for x
x = 1,430,787,487,765.42/1,384,438.06 - Step 6: Final answer
x = 1,033,478.87
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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.