Finding the Fourth Proportional to 905,681.14, 1,358,438.40 and 306,573.82
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Solution
The fourth proportional to 905,681.14, 1,358,438.40 and 306,573.82 is: 459,832.53
Step by Step Solution
- Step 1: Write the proportion equation
905,681.14 : 1,358,438.40 = 306,573.82 : x - Step 2: Convert to fraction form
905,681.14/1,358,438.40 = 306,573.82/x - Step 3: Cross multiply
905,681.14x = 1,358,438.40 × 306,573.82 - Step 4: Simplify right side
905,681.14x = 416,461,649,522.69 - Step 5: Solve for x
x = 416,461,649,522.69/905,681.14 - Step 6: Final answer
x = 459,832.53
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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.