Finding the Fourth Proportional to 509,480.99, 763,926.29 and 209,622.84
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Solution
The fourth proportional to 509,480.99, 763,926.29 and 209,622.84 is: 314,312.80
Step by Step Solution
- Step 1: Write the proportion equation
509,480.99 : 763,926.29 = 209,622.84 : x - Step 2: Convert to fraction form
509,480.99/763,926.29 = 209,622.84/x - Step 3: Cross multiply
509,480.99x = 763,926.29 × 209,622.84 - Step 4: Simplify right side
509,480.99x = 160,136,395,333.71 - Step 5: Solve for x
x = 160,136,395,333.71/509,480.99 - Step 6: Final answer
x = 314,312.80
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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.