Finding the Fourth Proportional to 605,310.12, 907,972.47 and 205,959.06
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Solution
The fourth proportional to 605,310.12, 907,972.47 and 205,959.06 is: 308,941.07
Step by Step Solution
- Step 1: Write the proportion equation
605,310.12 : 907,972.47 = 205,959.06 : x - Step 2: Convert to fraction form
605,310.12/907,972.47 = 205,959.06/x - Step 3: Cross multiply
605,310.12x = 907,972.47 × 205,959.06 - Step 4: Simplify right side
605,310.12x = 187,005,156,427.08 - Step 5: Solve for x
x = 187,005,156,427.08/605,310.12 - Step 6: Final answer
x = 308,941.07
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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.