Finding the Fourth Proportional to 605,506.12, 907,943.82 and 285,572.09
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Solution
The fourth proportional to 605,506.12, 907,943.82 and 285,572.09 is: 428,209.39
Step by Step Solution
- Step 1: Write the proportion equation
605,506.12 : 907,943.82 = 285,572.09 : x - Step 2: Convert to fraction form
605,506.12/907,943.82 = 285,572.09/x - Step 3: Cross multiply
605,506.12x = 907,943.82 × 285,572.09 - Step 4: Simplify right side
605,506.12x = 259,283,408,312.40 - Step 5: Solve for x
x = 259,283,408,312.40/605,506.12 - Step 6: Final answer
x = 428,209.39
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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.