Finding the Fourth Proportional to 762,518.69, 1,142,979.97 and 256,904.99
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Solution
The fourth proportional to 762,518.69, 1,142,979.97 and 256,904.99 is: 385,088.60
Step by Step Solution
- Step 1: Write the proportion equation
762,518.69 : 1,142,979.97 = 256,904.99 : x - Step 2: Convert to fraction form
762,518.69/1,142,979.97 = 256,904.99/x - Step 3: Cross multiply
762,518.69x = 1,142,979.97 × 256,904.99 - Step 4: Simplify right side
762,518.69x = 293,637,257,763.05 - Step 5: Solve for x
x = 293,637,257,763.05/762,518.69 - Step 6: Final answer
x = 385,088.60
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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.