Finding the Fourth Proportional to 1,055,128.21, 1,456,074.93 and 571,706.44
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Solution
The fourth proportional to 1,055,128.21, 1,456,074.93 and 571,706.44 is: 788,953.80
Step by Step Solution
- Step 1: Write the proportion equation
1,055,128.21 : 1,456,074.93 = 571,706.44 : x - Step 2: Convert to fraction form
1,055,128.21/1,456,074.93 = 571,706.44/x - Step 3: Cross multiply
1,055,128.21x = 1,456,074.93 × 571,706.44 - Step 4: Simplify right side
1,055,128.21x = 832,447,413,107.26 - Step 5: Solve for x
x = 832,447,413,107.26/1,055,128.21 - Step 6: Final answer
x = 788,953.80
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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.