Finding the Fourth Proportional to 873,117.36, 1,309,676.39 and 392,784.12
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Solution
The fourth proportional to 873,117.36, 1,309,676.39 and 392,784.12 is: 589,176.34
Step by Step Solution
- Step 1: Write the proportion equation
873,117.36 : 1,309,676.39 = 392,784.12 : x - Step 2: Convert to fraction form
873,117.36/1,309,676.39 = 392,784.12/x - Step 3: Cross multiply
873,117.36x = 1,309,676.39 × 392,784.12 - Step 4: Simplify right side
873,117.36x = 514,420,086,367.01 - Step 5: Solve for x
x = 514,420,086,367.01/873,117.36 - Step 6: Final answer
x = 589,176.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.