Finding the Fourth Proportional to 677,465.64, 934,835.22 and 391,077.99
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Solution
The fourth proportional to 677,465.64, 934,835.22 and 391,077.99 is: 539,648.74
Step by Step Solution
- Step 1: Write the proportion equation
677,465.64 : 934,835.22 = 391,077.99 : x - Step 2: Convert to fraction form
677,465.64/934,835.22 = 391,077.99/x - Step 3: Cross multiply
677,465.64x = 934,835.22 × 391,077.99 - Step 4: Simplify right side
677,465.64x = 365,593,478,818.81 - Step 5: Solve for x
x = 365,593,478,818.81/677,465.64 - Step 6: Final answer
x = 539,648.74
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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.