Finding the Fourth Proportional to 1,572,191.20, 2,169,277.20 and 1,000,072
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Solution
The fourth proportional to 1,572,191.20, 2,169,277.20 and 1,000,072 is: 1,379,878.85
Step by Step Solution
- Step 1: Write the proportion equation
1,572,191.20 : 2,169,277.20 = 1,000,072 : x - Step 2: Convert to fraction form
1,572,191.20/2,169,277.20 = 1,000,072/x - Step 3: Cross multiply
1,572,191.20x = 2,169,277.20 × 1,000,072 - Step 4: Simplify right side
1,572,191.20x = 2,169,433,387,958.40 - Step 5: Solve for x
x = 2,169,433,387,958.40/1,572,191.20 - Step 6: Final answer
x = 1,379,878.85
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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.