Finding the Fourth Proportional to 906,373.76, 1,359,560.64 and 431,619.68
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Solution
The fourth proportional to 906,373.76, 1,359,560.64 and 431,619.68 is: 647,429.52
Step by Step Solution
- Step 1: Write the proportion equation
906,373.76 : 1,359,560.64 = 431,619.68 : x - Step 2: Convert to fraction form
906,373.76/1,359,560.64 = 431,619.68/x - Step 3: Cross multiply
906,373.76x = 1,359,560.64 × 431,619.68 - Step 4: Simplify right side
906,373.76x = 586,813,128,377.40 - Step 5: Solve for x
x = 586,813,128,377.40/906,373.76 - Step 6: Final answer
x = 647,429.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.