Finding the Fourth Proportional to 2,257,671.36, 3,115,588.49 and 1,225,179.14
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Solution
The fourth proportional to 2,257,671.36, 3,115,588.49 and 1,225,179.14 is: 1,690,748.30
Step by Step Solution
- Step 1: Write the proportion equation
2,257,671.36 : 3,115,588.49 = 1,225,179.14 : x - Step 2: Convert to fraction form
2,257,671.36/3,115,588.49 = 1,225,179.14/x - Step 3: Cross multiply
2,257,671.36x = 3,115,588.49 × 1,225,179.14 - Step 4: Simplify right side
2,257,671.36x = 3,817,154,005,068.26 - Step 5: Solve for x
x = 3,817,154,005,068.26/2,257,671.36 - Step 6: Final answer
x = 1,690,748.30
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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.