Finding the Fourth Proportional to 642,986.08, 887,277.36 and 371,065.28
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Solution
The fourth proportional to 642,986.08, 887,277.36 and 371,065.28 is: 512,045.02
Step by Step Solution
- Step 1: Write the proportion equation
642,986.08 : 887,277.36 = 371,065.28 : x - Step 2: Convert to fraction form
642,986.08/887,277.36 = 371,065.28/x - Step 3: Cross multiply
642,986.08x = 887,277.36 × 371,065.28 - Step 4: Simplify right side
642,986.08x = 329,237,822,026.06 - Step 5: Solve for x
x = 329,237,822,026.06/642,986.08 - Step 6: Final answer
x = 512,045.02
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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.