Finding the Fourth Proportional to 890,988.12, 1,337,146.44 and 358,513.68
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Solution
The fourth proportional to 890,988.12, 1,337,146.44 and 358,513.68 is: 538,037.80
Step by Step Solution
- Step 1: Write the proportion equation
890,988.12 : 1,337,146.44 = 358,513.68 : x - Step 2: Convert to fraction form
890,988.12/1,337,146.44 = 358,513.68/x - Step 3: Cross multiply
890,988.12x = 1,337,146.44 × 358,513.68 - Step 4: Simplify right side
890,988.12x = 479,385,290,903.30 - Step 5: Solve for x
x = 479,385,290,903.30/890,988.12 - Step 6: Final answer
x = 538,037.80
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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.