Finding the Fourth Proportional to 683,944.58, 943,824.21 and 382,138.58
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Solution
The fourth proportional to 683,944.58, 943,824.21 and 382,138.58 is: 527,340.45
Step by Step Solution
- Step 1: Write the proportion equation
683,944.58 : 943,824.21 = 382,138.58 : x - Step 2: Convert to fraction form
683,944.58/943,824.21 = 382,138.58/x - Step 3: Cross multiply
683,944.58x = 943,824.21 × 382,138.58 - Step 4: Simplify right side
683,944.58x = 360,671,643,379.02 - Step 5: Solve for x
x = 360,671,643,379.02/683,944.58 - Step 6: Final answer
x = 527,340.45
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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.