Finding the Fourth Proportional to 637,136.04, 879,202.41 and 378,998.76
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Solution
The fourth proportional to 637,136.04, 879,202.41 and 378,998.76 is: 522,991.33
Step by Step Solution
- Step 1: Write the proportion equation
637,136.04 : 879,202.41 = 378,998.76 : x - Step 2: Convert to fraction form
637,136.04/879,202.41 = 378,998.76/x - Step 3: Cross multiply
637,136.04x = 879,202.41 × 378,998.76 - Step 4: Simplify right side
637,136.04x = 333,216,623,179.01 - Step 5: Solve for x
x = 333,216,623,179.01/637,136.04 - Step 6: Final answer
x = 522,991.33
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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.