Finding the Fourth Proportional to 519,807.80, 779,711.70 and 125,823.80
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Solution
The fourth proportional to 519,807.80, 779,711.70 and 125,823.80 is: 188,735.70
Step by Step Solution
- Step 1: Write the proportion equation
519,807.80 : 779,711.70 = 125,823.80 : x - Step 2: Convert to fraction form
519,807.80/779,711.70 = 125,823.80/x - Step 3: Cross multiply
519,807.80x = 779,711.70 × 125,823.80 - Step 4: Simplify right side
519,807.80x = 98,106,288,998.46 - Step 5: Solve for x
x = 98,106,288,998.46/519,807.80 - Step 6: Final answer
x = 188,735.70
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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.