Finding the Fourth Proportional to 2,828,655.12, 3,903,639.84 and 1,539,542.28
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Solution
The fourth proportional to 2,828,655.12, 3,903,639.84 and 1,539,542.28 is: 2,124,620.47
Step by Step Solution
- Step 1: Write the proportion equation
2,828,655.12 : 3,903,639.84 = 1,539,542.28 : x - Step 2: Convert to fraction form
2,828,655.12/3,903,639.84 = 1,539,542.28/x - Step 3: Cross multiply
2,828,655.12x = 3,903,639.84 × 1,539,542.28 - Step 4: Simplify right side
2,828,655.12x = 6,009,818,579,572.44 - Step 5: Solve for x
x = 6,009,818,579,572.44/2,828,655.12 - Step 6: Final answer
x = 2,124,620.47
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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.