Finding the Fourth Proportional to 1,420,430.56, 2,130,944.92 and 460,811.12
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Solution
The fourth proportional to 1,420,430.56, 2,130,944.92 and 460,811.12 is: 691,313.71
Step by Step Solution
- Step 1: Write the proportion equation
1,420,430.56 : 2,130,944.92 = 460,811.12 : x - Step 2: Convert to fraction form
1,420,430.56/2,130,944.92 = 460,811.12/x - Step 3: Cross multiply
1,420,430.56x = 2,130,944.92 × 460,811.12 - Step 4: Simplify right side
1,420,430.56x = 981,963,115,243.51 - Step 5: Solve for x
x = 981,963,115,243.51/1,420,430.56 - Step 6: Final answer
x = 691,313.71
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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.