Finding the Fourth Proportional to 1,079,420.13, 1,489,730.99 and 626,711.13
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Solution
The fourth proportional to 1,079,420.13, 1,489,730.99 and 626,711.13 is: 864,937.54
Step by Step Solution
- Step 1: Write the proportion equation
1,079,420.13 : 1,489,730.99 = 626,711.13 : x - Step 2: Convert to fraction form
1,079,420.13/1,489,730.99 = 626,711.13/x - Step 3: Cross multiply
1,079,420.13x = 1,489,730.99 × 626,711.13 - Step 4: Simplify right side
1,079,420.13x = 933,630,992,138.92 - Step 5: Solve for x
x = 933,630,992,138.92/1,079,420.13 - Step 6: Final answer
x = 864,937.54
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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.