Finding the Fourth Proportional to 1,310,345.01, 1,965,990.47 and 457,542.34
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Solution
The fourth proportional to 1,310,345.01, 1,965,990.47 and 457,542.34 is: 686,478.65
Step by Step Solution
- Step 1: Write the proportion equation
1,310,345.01 : 1,965,990.47 = 457,542.34 : x - Step 2: Convert to fraction form
1,310,345.01/1,965,990.47 = 457,542.34/x - Step 3: Cross multiply
1,310,345.01x = 1,965,990.47 × 457,542.34 - Step 4: Simplify right side
1,310,345.01x = 899,523,872,858.81 - Step 5: Solve for x
x = 899,523,872,858.81/1,310,345.01 - Step 6: Final answer
x = 686,478.65
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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.