Finding the Fourth Proportional to 637,809.60, 880,177.20 and 351,328.80
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Solution
The fourth proportional to 637,809.60, 880,177.20 and 351,328.80 is: 484,833.72
Step by Step Solution
- Step 1: Write the proportion equation
637,809.60 : 880,177.20 = 351,328.80 : x - Step 2: Convert to fraction form
637,809.60/880,177.20 = 351,328.80/x - Step 3: Cross multiply
637,809.60x = 880,177.20 × 351,328.80 - Step 4: Simplify right side
637,809.60x = 309,231,599,463.36 - Step 5: Solve for x
x = 309,231,599,463.36/637,809.60 - Step 6: Final answer
x = 484,833.72
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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.