Finding the Fourth Proportional to 636,115.94, 877,967.64 and 377,943.20
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Solution
The fourth proportional to 636,115.94, 877,967.64 and 377,943.20 is: 521,637.45
Step by Step Solution
- Step 1: Write the proportion equation
636,115.94 : 877,967.64 = 377,943.20 : x - Step 2: Convert to fraction form
636,115.94/877,967.64 = 377,943.20/x - Step 3: Cross multiply
636,115.94x = 877,967.64 × 377,943.20 - Step 4: Simplify right side
636,115.94x = 331,821,899,358.05 - Step 5: Solve for x
x = 331,821,899,358.05/636,115.94 - Step 6: Final answer
x = 521,637.45
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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.