Finding the Fourth Proportional to 509,645.12, 760,167.61 and 442,557.68
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Solution
The fourth proportional to 509,645.12, 760,167.61 and 442,557.68 is: 660,102.49
Step by Step Solution
- Step 1: Write the proportion equation
509,645.12 : 760,167.61 = 442,557.68 : x - Step 2: Convert to fraction form
509,645.12/760,167.61 = 442,557.68/x - Step 3: Cross multiply
509,645.12x = 760,167.61 × 442,557.68 - Step 4: Simplify right side
509,645.12x = 336,418,013,892.75 - Step 5: Solve for x
x = 336,418,013,892.75/509,645.12 - Step 6: Final answer
x = 660,102.49
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.