Finding the Fourth Proportional to 657,634.70, 921,621.70 and 657,634.70
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Solution
The fourth proportional to 657,634.70, 921,621.70 and 657,634.70 is: 921,621.70
Step by Step Solution
- Step 1: Write the proportion equation
657,634.70 : 921,621.70 = 657,634.70 : x - Step 2: Convert to fraction form
657,634.70/921,621.70 = 657,634.70/x - Step 3: Cross multiply
657,634.70x = 921,621.70 × 657,634.70 - Step 4: Simplify right side
657,634.70x = 606,090,410,192.99 - Step 5: Solve for x
x = 606,090,410,192.99/657,634.70 - Step 6: Final answer
x = 921,621.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.