Finding the Fourth Proportional to 539,217.20, 808,307.40 and 419,207.60
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Solution
The fourth proportional to 539,217.20, 808,307.40 and 419,207.60 is: 628,408.38
Step by Step Solution
- Step 1: Write the proportion equation
539,217.20 : 808,307.40 = 419,207.60 : x - Step 2: Convert to fraction form
539,217.20/808,307.40 = 419,207.60/x - Step 3: Cross multiply
539,217.20x = 808,307.40 × 419,207.60 - Step 4: Simplify right side
539,217.20x = 338,848,605,216.24 - Step 5: Solve for x
x = 338,848,605,216.24/539,217.20 - Step 6: Final answer
x = 628,408.38
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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.