Finding the Fourth Proportional to 1,992,913.80, 2,989,079.10 and 572,821.80
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Solution
The fourth proportional to 1,992,913.80, 2,989,079.10 and 572,821.80 is: 859,148.89
Step by Step Solution
- Step 1: Write the proportion equation
1,992,913.80 : 2,989,079.10 = 572,821.80 : x - Step 2: Convert to fraction form
1,992,913.80/2,989,079.10 = 572,821.80/x - Step 3: Cross multiply
1,992,913.80x = 2,989,079.10 × 572,821.80 - Step 4: Simplify right side
1,992,913.80x = 1,712,209,670,404.38 - Step 5: Solve for x
x = 1,712,209,670,404.38/1,992,913.80 - Step 6: Final answer
x = 859,148.89
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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.