Finding the Fourth Proportional to 627,828.68, 935,828.66 and 577,440.20
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Solution
The fourth proportional to 627,828.68, 935,828.66 and 577,440.20 is: 860,720.62
Step by Step Solution
- Step 1: Write the proportion equation
627,828.68 : 935,828.66 = 577,440.20 : x - Step 2: Convert to fraction form
627,828.68/935,828.66 = 577,440.20/x - Step 3: Cross multiply
627,828.68x = 935,828.66 × 577,440.20 - Step 4: Simplify right side
627,828.68x = 540,385,088,596.13 - Step 5: Solve for x
x = 540,385,088,596.13/627,828.68 - Step 6: Final answer
x = 860,720.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.