Finding the Fourth Proportional to 749,585.84, 1,034,425.20 and 405,422.10
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Solution
The fourth proportional to 749,585.84, 1,034,425.20 and 405,422.10 is: 559,480.74
Step by Step Solution
- Step 1: Write the proportion equation
749,585.84 : 1,034,425.20 = 405,422.10 : x - Step 2: Convert to fraction form
749,585.84/1,034,425.20 = 405,422.10/x - Step 3: Cross multiply
749,585.84x = 1,034,425.20 × 405,422.10 - Step 4: Simplify right side
749,585.84x = 419,378,836,876.92 - Step 5: Solve for x
x = 419,378,836,876.92/749,585.84 - Step 6: Final answer
x = 559,480.74
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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.