Finding the Fourth Proportional to 560,963.89, 774,130.09 and 306,315.31
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Solution
The fourth proportional to 560,963.89, 774,130.09 and 306,315.31 is: 422,715.09
Step by Step Solution
- Step 1: Write the proportion equation
560,963.89 : 774,130.09 = 306,315.31 : x - Step 2: Convert to fraction form
560,963.89/774,130.09 = 306,315.31/x - Step 3: Cross multiply
560,963.89x = 774,130.09 × 306,315.31 - Step 4: Simplify right side
560,963.89x = 237,127,898,498.68 - Step 5: Solve for x
x = 237,127,898,498.68/560,963.89 - Step 6: Final answer
x = 422,715.09
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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.