Finding the Fourth Proportional to 811,794.84, 1,120,502.07 and 472,328.70
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Solution
The fourth proportional to 811,794.84, 1,120,502.07 and 472,328.70 is: 651,944.63
Step by Step Solution
- Step 1: Write the proportion equation
811,794.84 : 1,120,502.07 = 472,328.70 : x - Step 2: Convert to fraction form
811,794.84/1,120,502.07 = 472,328.70/x - Step 3: Cross multiply
811,794.84x = 1,120,502.07 × 472,328.70 - Step 4: Simplify right side
811,794.84x = 529,245,286,070.41 - Step 5: Solve for x
x = 529,245,286,070.41/811,794.84 - Step 6: Final answer
x = 651,944.63
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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.