Finding the Fourth Proportional to 1,438,280.28, 2,156,859.36 and 539,231.58
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Solution
The fourth proportional to 1,438,280.28, 2,156,859.36 and 539,231.58 is: 808,637.02
Step by Step Solution
- Step 1: Write the proportion equation
1,438,280.28 : 2,156,859.36 = 539,231.58 : x - Step 2: Convert to fraction form
1,438,280.28/2,156,859.36 = 539,231.58/x - Step 3: Cross multiply
1,438,280.28x = 2,156,859.36 × 539,231.58 - Step 4: Simplify right side
1,438,280.28x = 1,163,046,680,530.59 - Step 5: Solve for x
x = 1,163,046,680,530.59/1,438,280.28 - Step 6: Final answer
x = 808,637.02
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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.