Finding the Fourth Proportional to 756,431.40, 1,133,116.20 and 471,246.60
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Solution
The fourth proportional to 756,431.40, 1,133,116.20 and 471,246.60 is: 705,916.17
Step by Step Solution
- Step 1: Write the proportion equation
756,431.40 : 1,133,116.20 = 471,246.60 : x - Step 2: Convert to fraction form
756,431.40/1,133,116.20 = 471,246.60/x - Step 3: Cross multiply
756,431.40x = 1,133,116.20 × 471,246.60 - Step 4: Simplify right side
756,431.40x = 533,977,156,654.92 - Step 5: Solve for x
x = 533,977,156,654.92/756,431.40 - Step 6: Final answer
x = 705,916.17
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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.