Finding the Fourth Proportional to 2,119,146.38, 3,178,420.13 and 679,642.70
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Solution
The fourth proportional to 2,119,146.38, 3,178,420.13 and 679,642.70 is: 1,019,368.01
Step by Step Solution
- Step 1: Write the proportion equation
2,119,146.38 : 3,178,420.13 = 679,642.70 : x - Step 2: Convert to fraction form
2,119,146.38/3,178,420.13 = 679,642.70/x - Step 3: Cross multiply
2,119,146.38x = 3,178,420.13 × 679,642.70 - Step 4: Simplify right side
2,119,146.38x = 2,160,190,019,597.24 - Step 5: Solve for x
x = 2,160,190,019,597.24/2,119,146.38 - Step 6: Final answer
x = 1,019,368.01
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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.