Finding the Fourth Proportional to 910,863.79, 1,257,102.86 and 528,890.56
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Solution
The fourth proportional to 910,863.79, 1,257,102.86 and 528,890.56 is: 729,933.32
Step by Step Solution
- Step 1: Write the proportion equation
910,863.79 : 1,257,102.86 = 528,890.56 : x - Step 2: Convert to fraction form
910,863.79/1,257,102.86 = 528,890.56/x - Step 3: Cross multiply
910,863.79x = 1,257,102.86 × 528,890.56 - Step 4: Simplify right side
910,863.79x = 664,869,829,815.79 - Step 5: Solve for x
x = 664,869,829,815.79/910,863.79 - Step 6: Final answer
x = 729,933.32
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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.