Finding the Fourth Proportional to 459,302.99, 688,861.95 and 288,448.40
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Solution
The fourth proportional to 459,302.99, 688,861.95 and 288,448.40 is: 432,614.49
Step by Step Solution
- Step 1: Write the proportion equation
459,302.99 : 688,861.95 = 288,448.40 : x - Step 2: Convert to fraction form
459,302.99/688,861.95 = 288,448.40/x - Step 3: Cross multiply
459,302.99x = 688,861.95 × 288,448.40 - Step 4: Simplify right side
459,302.99x = 198,701,127,298.38 - Step 5: Solve for x
x = 198,701,127,298.38/459,302.99 - Step 6: Final answer
x = 432,614.49
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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.