Finding the Fourth Proportional to 512,938.94, 708,053.28 and 459,129.02
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Solution
The fourth proportional to 512,938.94, 708,053.28 and 459,129.02 is: 633,774.87
Step by Step Solution
- Step 1: Write the proportion equation
512,938.94 : 708,053.28 = 459,129.02 : x - Step 2: Convert to fraction form
512,938.94/708,053.28 = 459,129.02/x - Step 3: Cross multiply
512,938.94x = 708,053.28 × 459,129.02 - Step 4: Simplify right side
512,938.94x = 325,087,808,554.19 - Step 5: Solve for x
x = 325,087,808,554.19/512,938.94 - Step 6: Final answer
x = 633,774.87
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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.