Finding the Fourth Proportional to 1,918,782.66, 2,878,134.06 and 639,482.82
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Solution
The fourth proportional to 1,918,782.66, 2,878,134.06 and 639,482.82 is: 959,210.92
Step by Step Solution
- Step 1: Write the proportion equation
1,918,782.66 : 2,878,134.06 = 639,482.82 : x - Step 2: Convert to fraction form
1,918,782.66/2,878,134.06 = 639,482.82/x - Step 3: Cross multiply
1,918,782.66x = 2,878,134.06 × 639,482.82 - Step 4: Simplify right side
1,918,782.66x = 1,840,517,285,026.85 - Step 5: Solve for x
x = 1,840,517,285,026.85/1,918,782.66 - Step 6: Final answer
x = 959,210.92
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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.