Finding the Fourth Proportional to 1,340,987.40, 2,011,053.42 and 442,261.62
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Solution
The fourth proportional to 1,340,987.40, 2,011,053.42 and 442,261.62 is: 663,251.38
Step by Step Solution
- Step 1: Write the proportion equation
1,340,987.40 : 2,011,053.42 = 442,261.62 : x - Step 2: Convert to fraction form
1,340,987.40/2,011,053.42 = 442,261.62/x - Step 3: Cross multiply
1,340,987.40x = 2,011,053.42 × 442,261.62 - Step 4: Simplify right side
1,340,987.40x = 889,411,743,435.74 - Step 5: Solve for x
x = 889,411,743,435.74/1,340,987.40 - Step 6: Final answer
x = 663,251.38
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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.