Finding the Fourth Proportional to 830,278.08, 1,145,748.24 and 462,735.62
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Solution
The fourth proportional to 830,278.08, 1,145,748.24 and 462,735.62 is: 638,555.36
Step by Step Solution
- Step 1: Write the proportion equation
830,278.08 : 1,145,748.24 = 462,735.62 : x - Step 2: Convert to fraction form
830,278.08/1,145,748.24 = 462,735.62/x - Step 3: Cross multiply
830,278.08x = 1,145,748.24 × 462,735.62 - Step 4: Simplify right side
830,278.08x = 530,178,516,471.57 - Step 5: Solve for x
x = 530,178,516,471.57/830,278.08 - Step 6: Final answer
x = 638,555.36
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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.