Finding the Fourth Proportional to 853,827.65, 1,282,217.70 and 455,246.90
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Solution
The fourth proportional to 853,827.65, 1,282,217.70 and 455,246.90 is: 683,657.45
Step by Step Solution
- Step 1: Write the proportion equation
853,827.65 : 1,282,217.70 = 455,246.90 : x - Step 2: Convert to fraction form
853,827.65/1,282,217.70 = 455,246.90/x - Step 3: Cross multiply
853,827.65x = 1,282,217.70 × 455,246.90 - Step 4: Simplify right side
853,827.65x = 583,725,633,050.13 - Step 5: Solve for x
x = 583,725,633,050.13/853,827.65 - Step 6: Final answer
x = 683,657.45
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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.