Finding the Fourth Proportional to 2,115,184.58, 2,918,988.64 and 1,148,314.10
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Solution
The fourth proportional to 2,115,184.58, 2,918,988.64 and 1,148,314.10 is: 1,584,691.87
Step by Step Solution
- Step 1: Write the proportion equation
2,115,184.58 : 2,918,988.64 = 1,148,314.10 : x - Step 2: Convert to fraction form
2,115,184.58/2,918,988.64 = 1,148,314.10/x - Step 3: Cross multiply
2,115,184.58x = 2,918,988.64 × 1,148,314.10 - Step 4: Simplify right side
2,115,184.58x = 3,351,915,813,051.82 - Step 5: Solve for x
x = 3,351,915,813,051.82/2,115,184.58 - Step 6: Final answer
x = 1,584,691.87
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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.