Finding the Fourth Proportional to 656,947.99, 906,588.98 and 384,961.74
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Solution
The fourth proportional to 656,947.99, 906,588.98 and 384,961.74 is: 531,247.64
Step by Step Solution
- Step 1: Write the proportion equation
656,947.99 : 906,588.98 = 384,961.74 : x - Step 2: Convert to fraction form
656,947.99/906,588.98 = 384,961.74/x - Step 3: Cross multiply
656,947.99x = 906,588.98 × 384,961.74 - Step 4: Simplify right side
656,947.99x = 349,002,071,205.63 - Step 5: Solve for x
x = 349,002,071,205.63/656,947.99 - Step 6: Final answer
x = 531,247.64
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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.