Finding the Fourth Proportional to 920,724.71, 1,270,663.95 and 558,163.85
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Solution
The fourth proportional to 920,724.71, 1,270,663.95 and 558,163.85 is: 770,304.82
Step by Step Solution
- Step 1: Write the proportion equation
920,724.71 : 1,270,663.95 = 558,163.85 : x - Step 2: Convert to fraction form
920,724.71/1,270,663.95 = 558,163.85/x - Step 3: Cross multiply
920,724.71x = 1,270,663.95 × 558,163.85 - Step 4: Simplify right side
920,724.71x = 709,238,682,388.21 - Step 5: Solve for x
x = 709,238,682,388.21/920,724.71 - Step 6: Final answer
x = 770,304.82
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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.