Finding the Fourth Proportional to 623,260.05, 860,499.09 and 391,005.35
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Solution
The fourth proportional to 623,260.05, 860,499.09 and 391,005.35 is: 539,838.46
Step by Step Solution
- Step 1: Write the proportion equation
623,260.05 : 860,499.09 = 391,005.35 : x - Step 2: Convert to fraction form
623,260.05/860,499.09 = 391,005.35/x - Step 3: Cross multiply
623,260.05x = 860,499.09 × 391,005.35 - Step 4: Simplify right side
623,260.05x = 336,459,747,860.13 - Step 5: Solve for x
x = 336,459,747,860.13/623,260.05 - Step 6: Final answer
x = 539,838.46
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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.