Finding the Fourth Proportional to 1,125,142.75, 1,552,711.58 and 615,834.19
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Solution
The fourth proportional to 1,125,142.75, 1,552,711.58 and 615,834.19 is: 849,859.17
Step by Step Solution
- Step 1: Write the proportion equation
1,125,142.75 : 1,552,711.58 = 615,834.19 : x - Step 2: Convert to fraction form
1,125,142.75/1,552,711.58 = 615,834.19/x - Step 3: Cross multiply
1,125,142.75x = 1,552,711.58 × 615,834.19 - Step 4: Simplify right side
1,125,142.75x = 956,212,878,172.92 - Step 5: Solve for x
x = 956,212,878,172.92/1,125,142.75 - Step 6: Final answer
x = 849,859.17
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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.