Finding the Fourth Proportional to 1,561,318.97, 2,155,214.73 and 1,017,587.03
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Solution
The fourth proportional to 1,561,318.97, 2,155,214.73 and 1,017,587.03 is: 1,404,657.60
Step by Step Solution
- Step 1: Write the proportion equation
1,561,318.97 : 2,155,214.73 = 1,017,587.03 : x - Step 2: Convert to fraction form
1,561,318.97/2,155,214.73 = 1,017,587.03/x - Step 3: Cross multiply
1,561,318.97x = 2,155,214.73 × 1,017,587.03 - Step 4: Simplify right side
1,561,318.97x = 2,193,118,545,336.88 - Step 5: Solve for x
x = 2,193,118,545,336.88/1,561,318.97 - Step 6: Final answer
x = 1,404,657.60
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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.