Finding the Fourth Proportional to 2,818,671.84, 3,888,140.40 and 1,798,927.20
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Solution
The fourth proportional to 2,818,671.84, 3,888,140.40 and 1,798,927.20 is: 2,481,481.32
Step by Step Solution
- Step 1: Write the proportion equation
2,818,671.84 : 3,888,140.40 = 1,798,927.20 : x - Step 2: Convert to fraction form
2,818,671.84/3,888,140.40 = 1,798,927.20/x - Step 3: Cross multiply
2,818,671.84x = 3,888,140.40 × 1,798,927.20 - Step 4: Simplify right side
2,818,671.84x = 6,994,481,522,978.88 - Step 5: Solve for x
x = 6,994,481,522,978.88/2,818,671.84 - Step 6: Final answer
x = 2,481,481.32
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1.5x scale
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.