Finding the Fourth Proportional to 328,989.24, 493,486.74 and 79,671.48
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Solution
The fourth proportional to 328,989.24, 493,486.74 and 79,671.48 is: 119,507.92
Step by Step Solution
- Step 1: Write the proportion equation
328,989.24 : 493,486.74 = 79,671.48 : x - Step 2: Convert to fraction form
328,989.24/493,486.74 = 79,671.48/x - Step 3: Cross multiply
328,989.24x = 493,486.74 × 79,671.48 - Step 4: Simplify right side
328,989.24x = 39,316,818,936.18 - Step 5: Solve for x
x = 39,316,818,936.18/328,989.24 - Step 6: Final answer
x = 119,507.92
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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.