Finding the Fourth Proportional to 712,163.28, 983,451.52 and 457,956.08
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Solution
The fourth proportional to 712,163.28, 983,451.52 and 457,956.08 is: 632,407.79
Step by Step Solution
- Step 1: Write the proportion equation
712,163.28 : 983,451.52 = 457,956.08 : x - Step 2: Convert to fraction form
712,163.28/983,451.52 = 457,956.08/x - Step 3: Cross multiply
712,163.28x = 983,451.52 × 457,956.08 - Step 4: Simplify right side
712,163.28x = 450,377,602,969.24 - Step 5: Solve for x
x = 450,377,602,969.24/712,163.28 - Step 6: Final answer
x = 632,407.79
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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.