Finding the Fourth Proportional to 834,921.15, 1,252,378.65 and 302,317.62
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Solution
The fourth proportional to 834,921.15, 1,252,378.65 and 302,317.62 is: 453,475.32
Step by Step Solution
- Step 1: Write the proportion equation
834,921.15 : 1,252,378.65 = 302,317.62 : x - Step 2: Convert to fraction form
834,921.15/1,252,378.65 = 302,317.62/x - Step 3: Cross multiply
834,921.15x = 1,252,378.65 × 302,317.62 - Step 4: Simplify right side
834,921.15x = 378,616,132,806.81 - Step 5: Solve for x
x = 378,616,132,806.81/834,921.15 - Step 6: Final answer
x = 453,475.32
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1.5x scale
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.