Finding the Fourth Proportional to 492,312.16, 679,445.11 and 285,626.08
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Solution
The fourth proportional to 492,312.16, 679,445.11 and 285,626.08 is: 394,195.51
Step by Step Solution
- Step 1: Write the proportion equation
492,312.16 : 679,445.11 = 285,626.08 : x - Step 2: Convert to fraction form
492,312.16/679,445.11 = 285,626.08/x - Step 3: Cross multiply
492,312.16x = 679,445.11 × 285,626.08 - Step 4: Simplify right side
492,312.16x = 194,067,244,550.81 - Step 5: Solve for x
x = 194,067,244,550.81/492,312.16 - Step 6: Final answer
x = 394,195.51
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1.5x scale
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.