Finding the Fourth Proportional to 579,718.40, 868,502.40 and 329,657.60
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Solution
The fourth proportional to 579,718.40, 868,502.40 and 329,657.60 is: 493,874.99
Step by Step Solution
- Step 1: Write the proportion equation
579,718.40 : 868,502.40 = 329,657.60 : x - Step 2: Convert to fraction form
579,718.40/868,502.40 = 329,657.60/x - Step 3: Cross multiply
579,718.40x = 868,502.40 × 329,657.60 - Step 4: Simplify right side
579,718.40x = 286,308,416,778.24 - Step 5: Solve for x
x = 286,308,416,778.24/579,718.40 - Step 6: Final answer
x = 493,874.99
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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.