Finding the Fourth Proportional to 1,115,888.32, 1,539,893.46 and 632,497.96
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Solution
The fourth proportional to 1,115,888.32, 1,539,893.46 and 632,497.96 is: 872,828.81
Step by Step Solution
- Step 1: Write the proportion equation
1,115,888.32 : 1,539,893.46 = 632,497.96 : x - Step 2: Convert to fraction form
1,115,888.32/1,539,893.46 = 632,497.96/x - Step 3: Cross multiply
1,115,888.32x = 1,539,893.46 × 632,497.96 - Step 4: Simplify right side
1,115,888.32x = 973,979,472,067.34 - Step 5: Solve for x
x = 973,979,472,067.34/1,115,888.32 - Step 6: Final answer
x = 872,828.81
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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.