Finding the Fourth Proportional to 1,557,657.75, 2,149,567.70 and 842,265.75
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Solution
The fourth proportional to 1,557,657.75, 2,149,567.70 and 842,265.75 is: 1,162,326.74
Step by Step Solution
- Step 1: Write the proportion equation
1,557,657.75 : 2,149,567.70 = 842,265.75 : x - Step 2: Convert to fraction form
1,557,657.75/2,149,567.70 = 842,265.75/x - Step 3: Cross multiply
1,557,657.75x = 2,149,567.70 × 842,265.75 - Step 4: Simplify right side
1,557,657.75x = 1,810,507,246,804.95 - Step 5: Solve for x
x = 1,810,507,246,804.95/1,557,657.75 - Step 6: Final answer
x = 1,162,326.74
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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.