Finding the Fourth Proportional to 680,603.64, 1,021,053.24 and 207,276.54
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Solution
The fourth proportional to 680,603.64, 1,021,053.24 and 207,276.54 is: 310,959.82
Step by Step Solution
- Step 1: Write the proportion equation
680,603.64 : 1,021,053.24 = 207,276.54 : x - Step 2: Convert to fraction form
680,603.64/1,021,053.24 = 207,276.54/x - Step 3: Cross multiply
680,603.64x = 1,021,053.24 × 207,276.54 - Step 4: Simplify right side
680,603.64x = 211,640,382,742.99 - Step 5: Solve for x
x = 211,640,382,742.99/680,603.64 - Step 6: Final answer
x = 310,959.82
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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.