Finding the Fourth Proportional to 906,815.13, 1,251,414.81 and 493,354.26
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Solution
The fourth proportional to 906,815.13, 1,251,414.81 and 493,354.26 is: 680,834.28
Step by Step Solution
- Step 1: Write the proportion equation
906,815.13 : 1,251,414.81 = 493,354.26 : x - Step 2: Convert to fraction form
906,815.13/1,251,414.81 = 493,354.26/x - Step 3: Cross multiply
906,815.13x = 1,251,414.81 × 493,354.26 - Step 4: Simplify right side
906,815.13x = 617,390,818,816.75 - Step 5: Solve for x
x = 617,390,818,816.75/906,815.13 - Step 6: Final answer
x = 680,834.28
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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.