Finding the Fourth Proportional to 1,175,574.56, 1,620,791.12 and 761,379.68
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Solution
The fourth proportional to 1,175,574.56, 1,620,791.12 and 761,379.68 is: 1,049,731.31
Step by Step Solution
- Step 1: Write the proportion equation
1,175,574.56 : 1,620,791.12 = 761,379.68 : x - Step 2: Convert to fraction form
1,175,574.56/1,620,791.12 = 761,379.68/x - Step 3: Cross multiply
1,175,574.56x = 1,620,791.12 × 761,379.68 - Step 4: Simplify right side
1,175,574.56x = 1,234,037,424,292.44 - Step 5: Solve for x
x = 1,234,037,424,292.44/1,175,574.56 - Step 6: Final answer
x = 1,049,731.31
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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.