Finding the Fourth Proportional to 430,827.64, 645,279.16 and 312,226.62
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Solution
The fourth proportional to 430,827.64, 645,279.16 and 312,226.62 is: 467,642.54
Step by Step Solution
- Step 1: Write the proportion equation
430,827.64 : 645,279.16 = 312,226.62 : x - Step 2: Convert to fraction form
430,827.64/645,279.16 = 312,226.62/x - Step 3: Cross multiply
430,827.64x = 645,279.16 × 312,226.62 - Step 4: Simplify right side
430,827.64x = 201,473,331,083.24 - Step 5: Solve for x
x = 201,473,331,083.24/430,827.64 - Step 6: Final answer
x = 467,642.54
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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.