Finding the Fourth Proportional to 1,392,346.64, 2,088,521.58 and 381,477.36
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Solution
The fourth proportional to 1,392,346.64, 2,088,521.58 and 381,477.36 is: 572,216.48
Step by Step Solution
- Step 1: Write the proportion equation
1,392,346.64 : 2,088,521.58 = 381,477.36 : x - Step 2: Convert to fraction form
1,392,346.64/2,088,521.58 = 381,477.36/x - Step 3: Cross multiply
1,392,346.64x = 2,088,521.58 × 381,477.36 - Step 4: Simplify right side
1,392,346.64x = 796,723,698,641.43 - Step 5: Solve for x
x = 796,723,698,641.43/1,392,346.64 - Step 6: Final answer
x = 572,216.48
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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.