Finding the Fourth Proportional to 753,345.43, 1,039,623.87 and 413,813.68
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Solution
The fourth proportional to 753,345.43, 1,039,623.87 and 413,813.68 is: 571,066.82
Step by Step Solution
- Step 1: Write the proportion equation
753,345.43 : 1,039,623.87 = 413,813.68 : x - Step 2: Convert to fraction form
753,345.43/1,039,623.87 = 413,813.68/x - Step 3: Cross multiply
753,345.43x = 1,039,623.87 × 413,813.68 - Step 4: Simplify right side
753,345.43x = 430,210,579,460.54 - Step 5: Solve for x
x = 430,210,579,460.54/753,345.43 - Step 6: Final answer
x = 571,066.82
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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.