Finding the Fourth Proportional to 3,985,603.97, 5,979,354.59 and 1,289,929.19
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Solution
The fourth proportional to 3,985,603.97, 5,979,354.59 and 1,289,929.19 is: 1,935,200.80
Step by Step Solution
- Step 1: Write the proportion equation
3,985,603.97 : 5,979,354.59 = 1,289,929.19 : x - Step 2: Convert to fraction form
3,985,603.97/5,979,354.59 = 1,289,929.19/x - Step 3: Cross multiply
3,985,603.97x = 5,979,354.59 × 1,289,929.19 - Step 4: Simplify right side
3,985,603.97x = 7,712,943,996,329.53 - Step 5: Solve for x
x = 7,712,943,996,329.53/3,985,603.97 - Step 6: Final answer
x = 1,935,200.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.