Finding the Fourth Proportional to 569,163.36, 785,456.70 and 311,056.28
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Solution
The fourth proportional to 569,163.36, 785,456.70 and 311,056.28 is: 429,263.82
Step by Step Solution
- Step 1: Write the proportion equation
569,163.36 : 785,456.70 = 311,056.28 : x - Step 2: Convert to fraction form
569,163.36/785,456.70 = 311,056.28/x - Step 3: Cross multiply
569,163.36x = 785,456.70 × 311,056.28 - Step 4: Simplify right side
569,163.36x = 244,321,235,275.79 - Step 5: Solve for x
x = 244,321,235,275.79/569,163.36 - Step 6: Final answer
x = 429,263.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.