Finding the Fourth Proportional to 2,947,478.81, 4,421,217.94 and 817,563.02
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Solution
The fourth proportional to 2,947,478.81, 4,421,217.94 and 817,563.02 is: 1,226,344.45
Step by Step Solution
- Step 1: Write the proportion equation
2,947,478.81 : 4,421,217.94 = 817,563.02 : x - Step 2: Convert to fraction form
2,947,478.81/4,421,217.94 = 817,563.02/x - Step 3: Cross multiply
2,947,478.81x = 4,421,217.94 × 817,563.02 - Step 4: Simplify right side
2,947,478.81x = 3,614,624,291,104.58 - Step 5: Solve for x
x = 3,614,624,291,104.58/2,947,478.81 - Step 6: Final answer
x = 1,226,344.45
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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.