Finding the Fourth Proportional to 437,637.20, 656,455.80 and 260,052.80
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Solution
The fourth proportional to 437,637.20, 656,455.80 and 260,052.80 is: 390,079.20
Step by Step Solution
- Step 1: Write the proportion equation
437,637.20 : 656,455.80 = 260,052.80 : x - Step 2: Convert to fraction form
437,637.20/656,455.80 = 260,052.80/x - Step 3: Cross multiply
437,637.20x = 656,455.80 × 260,052.80 - Step 4: Simplify right side
437,637.20x = 170,713,168,866.24 - Step 5: Solve for x
x = 170,713,168,866.24/437,637.20 - Step 6: Final answer
x = 390,079.20
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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.