Finding the Fourth Proportional to 636,592.74, 878,503.86 and 346,207.05
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Solution
The fourth proportional to 636,592.74, 878,503.86 and 346,207.05 is: 477,768.93
Step by Step Solution
- Step 1: Write the proportion equation
636,592.74 : 878,503.86 = 346,207.05 : x - Step 2: Convert to fraction form
636,592.74/878,503.86 = 346,207.05/x - Step 3: Cross multiply
636,592.74x = 878,503.86 × 346,207.05 - Step 4: Simplify right side
636,592.74x = 304,144,229,784.21 - Step 5: Solve for x
x = 304,144,229,784.21/636,592.74 - Step 6: Final answer
x = 477,768.93
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1.5x scale
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.