Finding the Fourth Proportional to 865,125.21, 1,185,201.65 and 832,780.29
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Solution
The fourth proportional to 865,125.21, 1,185,201.65 and 832,780.29 is: 1,140,889.85
Step by Step Solution
- Step 1: Write the proportion equation
865,125.21 : 1,185,201.65 = 832,780.29 : x - Step 2: Convert to fraction form
865,125.21/1,185,201.65 = 832,780.29/x - Step 3: Cross multiply
865,125.21x = 1,185,201.65 × 832,780.29 - Step 4: Simplify right side
865,125.21x = 987,012,569,631.58 - Step 5: Solve for x
x = 987,012,569,631.58/865,125.21 - Step 6: Final answer
x = 1,140,889.85
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.