Finding the Fourth Proportional to 517,688.24, 776,532.12 and 143,711.12
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Solution
The fourth proportional to 517,688.24, 776,532.12 and 143,711.12 is: 215,566.61
Step by Step Solution
- Step 1: Write the proportion equation
517,688.24 : 776,532.12 = 143,711.12 : x - Step 2: Convert to fraction form
517,688.24/776,532.12 = 143,711.12/x - Step 3: Cross multiply
517,688.24x = 776,532.12 × 143,711.12 - Step 4: Simplify right side
517,688.24x = 111,596,300,681.17 - Step 5: Solve for x
x = 111,596,300,681.17/517,688.24 - Step 6: Final answer
x = 215,566.61
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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.