Finding the Fourth Proportional to 636,364.28, 878,164.21 and 360,747.68
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Solution
The fourth proportional to 636,364.28, 878,164.21 and 360,747.68 is: 497,821.32
Step by Step Solution
- Step 1: Write the proportion equation
636,364.28 : 878,164.21 = 360,747.68 : x - Step 2: Convert to fraction form
636,364.28/878,164.21 = 360,747.68/x - Step 3: Cross multiply
636,364.28x = 878,164.21 × 360,747.68 - Step 4: Simplify right side
636,364.28x = 316,795,702,710.07 - Step 5: Solve for x
x = 316,795,702,710.07/636,364.28 - Step 6: Final answer
x = 497,821.32
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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.