Finding the Fourth Proportional to 1,475,639.57, 2,213,770.40 and 478,289.81
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Solution
The fourth proportional to 1,475,639.57, 2,213,770.40 and 478,289.81 is: 717,535.53
Step by Step Solution
- Step 1: Write the proportion equation
1,475,639.57 : 2,213,770.40 = 478,289.81 : x - Step 2: Convert to fraction form
1,475,639.57/2,213,770.40 = 478,289.81/x - Step 3: Cross multiply
1,475,639.57x = 2,213,770.40 × 478,289.81 - Step 4: Simplify right side
1,475,639.57x = 1,058,823,828,936.19 - Step 5: Solve for x
x = 1,058,823,828,936.19/1,475,639.57 - Step 6: Final answer
x = 717,535.53
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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.