Finding the Fourth Proportional to 687,408.96, 1,030,780.08 and 403,192.38
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Solution
The fourth proportional to 687,408.96, 1,030,780.08 and 403,192.38 is: 604,593.04
Step by Step Solution
- Step 1: Write the proportion equation
687,408.96 : 1,030,780.08 = 403,192.38 : x - Step 2: Convert to fraction form
687,408.96/1,030,780.08 = 403,192.38/x - Step 3: Cross multiply
687,408.96x = 1,030,780.08 × 403,192.38 - Step 4: Simplify right side
687,408.96x = 415,602,673,711.79 - Step 5: Solve for x
x = 415,602,673,711.79/687,408.96 - Step 6: Final answer
x = 604,593.04
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1.5x scale
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.