Finding the Fourth Proportional to 450,447.08, 621,574.65 and 304,956.91
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Solution
The fourth proportional to 450,447.08, 621,574.65 and 304,956.91 is: 420,811.88
Step by Step Solution
- Step 1: Write the proportion equation
450,447.08 : 621,574.65 = 304,956.91 : x - Step 2: Convert to fraction form
450,447.08/621,574.65 = 304,956.91/x - Step 3: Cross multiply
450,447.08x = 621,574.65 × 304,956.91 - Step 4: Simplify right side
450,447.08x = 189,553,481,878.94 - Step 5: Solve for x
x = 189,553,481,878.94/450,447.08 - Step 6: Final answer
x = 420,811.88
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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.