Finding the Fourth Proportional to 930,774.06, 1,284,467.49 and 528,366.06
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Solution
The fourth proportional to 930,774.06, 1,284,467.49 and 528,366.06 is: 729,144.76
Step by Step Solution
- Step 1: Write the proportion equation
930,774.06 : 1,284,467.49 = 528,366.06 : x - Step 2: Convert to fraction form
930,774.06/1,284,467.49 = 528,366.06/x - Step 3: Cross multiply
930,774.06x = 1,284,467.49 × 528,366.06 - Step 4: Simplify right side
930,774.06x = 678,669,026,889.39 - Step 5: Solve for x
x = 678,669,026,889.39/930,774.06 - Step 6: Final answer
x = 729,144.76
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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.