Finding the Fourth Proportional to 4,118,432.80, 6,178,232.40 and 1,278,248.80
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Solution
The fourth proportional to 4,118,432.80, 6,178,232.40 and 1,278,248.80 is: 1,917,554.21
Step by Step Solution
- Step 1: Write the proportion equation
4,118,432.80 : 6,178,232.40 = 1,278,248.80 : x - Step 2: Convert to fraction form
4,118,432.80/6,178,232.40 = 1,278,248.80/x - Step 3: Cross multiply
4,118,432.80x = 6,178,232.40 × 1,278,248.80 - Step 4: Simplify right side
4,118,432.80x = 7,897,318,151,421.12 - Step 5: Solve for x
x = 7,897,318,151,421.12/4,118,432.80 - Step 6: Final answer
x = 1,917,554.21
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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.