Finding the Fourth Proportional to 825,325.68, 1,138,934.96 and 462,748.42
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Solution
The fourth proportional to 825,325.68, 1,138,934.96 and 462,748.42 is: 638,584.70
Step by Step Solution
- Step 1: Write the proportion equation
825,325.68 : 1,138,934.96 = 462,748.42 : x - Step 2: Convert to fraction form
825,325.68/1,138,934.96 = 462,748.42/x - Step 3: Cross multiply
825,325.68x = 1,138,934.96 × 462,748.42 - Step 4: Simplify right side
825,325.68x = 527,040,354,068.00 - Step 5: Solve for x
x = 527,040,354,068.00/825,325.68 - Step 6: Final answer
x = 638,584.70
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1.5x scale
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.