Finding the Fourth Proportional to 874,963.13, 1,207,449.14 and 472,555.13
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Solution
The fourth proportional to 874,963.13, 1,207,449.14 and 472,555.13 is: 652,126.08
Step by Step Solution
- Step 1: Write the proportion equation
874,963.13 : 1,207,449.14 = 472,555.13 : x - Step 2: Convert to fraction form
874,963.13/1,207,449.14 = 472,555.13/x - Step 3: Cross multiply
874,963.13x = 1,207,449.14 × 472,555.13 - Step 4: Simplify right side
874,963.13x = 570,586,276,921.07 - Step 5: Solve for x
x = 570,586,276,921.07/874,963.13 - Step 6: Final answer
x = 652,126.08
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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.