Finding the Fourth Proportional to 1,125,129.16, 1,552,680.12 and 615,863.80
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Solution
The fourth proportional to 1,125,129.16, 1,552,680.12 and 615,863.80 is: 849,893.07
Step by Step Solution
- Step 1: Write the proportion equation
1,125,129.16 : 1,552,680.12 = 615,863.80 : x - Step 2: Convert to fraction form
1,125,129.16/1,552,680.12 = 615,863.80/x - Step 3: Cross multiply
1,125,129.16x = 1,552,680.12 × 615,863.80 - Step 4: Simplify right side
1,125,129.16x = 956,239,478,887.66 - Step 5: Solve for x
x = 956,239,478,887.66/1,125,129.16 - Step 6: Final answer
x = 849,893.07
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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.