Finding the Fourth Proportional to 911,318.60, 1,257,630.23 and 503,411.99
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Solution
The fourth proportional to 911,318.60, 1,257,630.23 and 503,411.99 is: 694,714.38
Step by Step Solution
- Step 1: Write the proportion equation
911,318.60 : 1,257,630.23 = 503,411.99 : x - Step 2: Convert to fraction form
911,318.60/1,257,630.23 = 503,411.99/x - Step 3: Cross multiply
911,318.60x = 1,257,630.23 × 503,411.99 - Step 4: Simplify right side
911,318.60x = 633,106,136,768.46 - Step 5: Solve for x
x = 633,106,136,768.46/911,318.60 - Step 6: Final answer
x = 694,714.38
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1.5x scale
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.