Finding the Fourth Proportional to 1,438,208.87, 2,156,752.65 and 539,160.05
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Solution
The fourth proportional to 1,438,208.87, 2,156,752.65 and 539,160.05 is: 808,529.89
Step by Step Solution
- Step 1: Write the proportion equation
1,438,208.87 : 2,156,752.65 = 539,160.05 : x - Step 2: Convert to fraction form
1,438,208.87/2,156,752.65 = 539,160.05/x - Step 3: Cross multiply
1,438,208.87x = 2,156,752.65 × 539,160.05 - Step 4: Simplify right side
1,438,208.87x = 1,162,834,860,377.24 - Step 5: Solve for x
x = 1,162,834,860,377.24/1,438,208.87 - Step 6: Final answer
x = 808,529.89
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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.