Finding the Fourth Proportional to 1,878,124.76, 2,817,235.66 and 511,909.70
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Solution
The fourth proportional to 1,878,124.76, 2,817,235.66 and 511,909.70 is: 767,877.77
Step by Step Solution
- Step 1: Write the proportion equation
1,878,124.76 : 2,817,235.66 = 511,909.70 : x - Step 2: Convert to fraction form
1,878,124.76/2,817,235.66 = 511,909.70/x - Step 3: Cross multiply
1,878,124.76x = 2,817,235.66 × 511,909.70 - Step 4: Simplify right side
1,878,124.76x = 1,442,170,261,539.90 - Step 5: Solve for x
x = 1,442,170,261,539.90/1,878,124.76 - Step 6: Final answer
x = 767,877.77
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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.