Finding the Fourth Proportional to 425,192.05, 637,788.87 and 399,210.49
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Solution
The fourth proportional to 425,192.05, 637,788.87 and 399,210.49 is: 598,816.48
Step by Step Solution
- Step 1: Write the proportion equation
425,192.05 : 637,788.87 = 399,210.49 : x - Step 2: Convert to fraction form
425,192.05/637,788.87 = 399,210.49/x - Step 3: Cross multiply
425,192.05x = 637,788.87 × 399,210.49 - Step 4: Simplify right side
425,192.05x = 254,612,007,309.25 - Step 5: Solve for x
x = 254,612,007,309.25/425,192.05 - Step 6: Final answer
x = 598,816.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.