Finding the Fourth Proportional to 459,305.90, 687,403.65 and 403,318.70
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Solution
The fourth proportional to 459,305.90, 687,403.65 and 403,318.70 is: 603,612.42
Step by Step Solution
- Step 1: Write the proportion equation
459,305.90 : 687,403.65 = 403,318.70 : x - Step 2: Convert to fraction form
459,305.90/687,403.65 = 403,318.70/x - Step 3: Cross multiply
459,305.90x = 687,403.65 × 403,318.70 - Step 4: Simplify right side
459,305.90x = 277,242,746,493.26 - Step 5: Solve for x
x = 277,242,746,493.26/459,305.90 - Step 6: Final answer
x = 603,612.42
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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.