Finding the Fourth Proportional to 1,185,281.96, 1,635,689.10 and 641,417.75
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Solution
The fourth proportional to 1,185,281.96, 1,635,689.10 and 641,417.75 is: 885,156.49
Step by Step Solution
- Step 1: Write the proportion equation
1,185,281.96 : 1,635,689.10 = 641,417.75 : x - Step 2: Convert to fraction form
1,185,281.96/1,635,689.10 = 641,417.75/x - Step 3: Cross multiply
1,185,281.96x = 1,635,689.10 × 641,417.75 - Step 4: Simplify right side
1,185,281.96x = 1,049,160,014,043.08 - Step 5: Solve for x
x = 1,049,160,014,043.08/1,185,281.96 - Step 6: Final answer
x = 885,156.49
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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.