Finding the Fourth Proportional to 623,431.13, 860,317.76 and 351,496.65
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Solution
The fourth proportional to 623,431.13, 860,317.76 and 351,496.65 is: 485,055.68
Step by Step Solution
- Step 1: Write the proportion equation
623,431.13 : 860,317.76 = 351,496.65 : x - Step 2: Convert to fraction form
623,431.13/860,317.76 = 351,496.65/x - Step 3: Cross multiply
623,431.13x = 860,317.76 × 351,496.65 - Step 4: Simplify right side
623,431.13x = 302,398,808,818.02 - Step 5: Solve for x
x = 302,398,808,818.02/623,431.13 - Step 6: Final answer
x = 485,055.68
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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.