Finding the Fourth Proportional to 893,640.80, 1,341,416.16 and 361,509.68
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Solution
The fourth proportional to 893,640.80, 1,341,416.16 and 361,509.68 is: 542,650.84
Step by Step Solution
- Step 1: Write the proportion equation
893,640.80 : 1,341,416.16 = 361,509.68 : x - Step 2: Convert to fraction form
893,640.80/1,341,416.16 = 361,509.68/x - Step 3: Cross multiply
893,640.80x = 1,341,416.16 × 361,509.68 - Step 4: Simplify right side
893,640.80x = 484,934,926,748.43 - Step 5: Solve for x
x = 484,934,926,748.43/893,640.80 - Step 6: Final answer
x = 542,650.84
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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.