Finding the Fourth Proportional to 413,246.40, 619,869.60 and 409,309.80
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Solution
The fourth proportional to 413,246.40, 619,869.60 and 409,309.80 is: 613,964.70
Step by Step Solution
- Step 1: Write the proportion equation
413,246.40 : 619,869.60 = 409,309.80 : x - Step 2: Convert to fraction form
413,246.40/619,869.60 = 409,309.80/x - Step 3: Cross multiply
413,246.40x = 619,869.60 × 409,309.80 - Step 4: Simplify right side
413,246.40x = 253,718,702,002.08 - Step 5: Solve for x
x = 253,718,702,002.08/413,246.40 - Step 6: Final answer
x = 613,964.70
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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.