Finding the Fourth Proportional to 1,342,130.14, 1,852,216.23 and 769,265.74
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Solution
The fourth proportional to 1,342,130.14, 1,852,216.23 and 769,265.74 is: 1,061,630.65
Step by Step Solution
- Step 1: Write the proportion equation
1,342,130.14 : 1,852,216.23 = 769,265.74 : x - Step 2: Convert to fraction form
1,342,130.14/1,852,216.23 = 769,265.74/x - Step 3: Cross multiply
1,342,130.14x = 1,852,216.23 × 769,265.74 - Step 4: Simplify right side
1,342,130.14x = 1,424,846,488,810.96 - Step 5: Solve for x
x = 1,424,846,488,810.96/1,342,130.14 - Step 6: Final answer
x = 1,061,630.65
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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.