Finding the Fourth Proportional to 890,352.09, 1,228,746.15 and 503,033.18
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Solution
The fourth proportional to 890,352.09, 1,228,746.15 and 503,033.18 is: 694,219.83
Step by Step Solution
- Step 1: Write the proportion equation
890,352.09 : 1,228,746.15 = 503,033.18 : x - Step 2: Convert to fraction form
890,352.09/1,228,746.15 = 503,033.18/x - Step 3: Cross multiply
890,352.09x = 1,228,746.15 × 503,033.18 - Step 4: Simplify right side
890,352.09x = 618,100,077,103.53 - Step 5: Solve for x
x = 618,100,077,103.53/890,352.09 - Step 6: Final answer
x = 694,219.83
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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.