Finding the Fourth Proportional to 729,438.18, 1,007,157.90 and 471,467.76
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Solution
The fourth proportional to 729,438.18, 1,007,157.90 and 471,467.76 is: 650,970.15
Step by Step Solution
- Step 1: Write the proportion equation
729,438.18 : 1,007,157.90 = 471,467.76 : x - Step 2: Convert to fraction form
729,438.18/1,007,157.90 = 471,467.76/x - Step 3: Cross multiply
729,438.18x = 1,007,157.90 × 471,467.76 - Step 4: Simplify right side
729,438.18x = 474,842,479,079.30 - Step 5: Solve for x
x = 474,842,479,079.30/729,438.18 - Step 6: Final answer
x = 650,970.15
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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.