Finding the Fourth Proportional to 1,430,214.28, 1,973,711.70 and 841,643.84
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Solution
The fourth proportional to 1,430,214.28, 1,973,711.70 and 841,643.84 is: 1,161,477.91
Step by Step Solution
- Step 1: Write the proportion equation
1,430,214.28 : 1,973,711.70 = 841,643.84 : x - Step 2: Convert to fraction form
1,430,214.28/1,973,711.70 = 841,643.84/x - Step 3: Cross multiply
1,430,214.28x = 1,973,711.70 × 841,643.84 - Step 4: Simplify right side
1,430,214.28x = 1,661,162,287,202.54 - Step 5: Solve for x
x = 1,661,162,287,202.54/1,430,214.28 - Step 6: Final answer
x = 1,161,477.91
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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.