Finding the Fourth Proportional to 945,447.64, 1,304,726.10 and 515,729.68
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Solution
The fourth proportional to 945,447.64, 1,304,726.10 and 515,729.68 is: 711,711.52
Step by Step Solution
- Step 1: Write the proportion equation
945,447.64 : 1,304,726.10 = 515,729.68 : x - Step 2: Convert to fraction form
945,447.64/1,304,726.10 = 515,729.68/x - Step 3: Cross multiply
945,447.64x = 1,304,726.10 × 515,729.68 - Step 4: Simplify right side
945,447.64x = 672,885,974,040.65 - Step 5: Solve for x
x = 672,885,974,040.65/945,447.64 - Step 6: Final answer
x = 711,711.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.