Finding the Fourth Proportional to 2,115,507.66, 2,919,370.61 and 1,197,712.95
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Solution
The fourth proportional to 2,115,507.66, 2,919,370.61 and 1,197,712.95 is: 1,652,826.90
Step by Step Solution
- Step 1: Write the proportion equation
2,115,507.66 : 2,919,370.61 = 1,197,712.95 : x - Step 2: Convert to fraction form
2,115,507.66/2,919,370.61 = 1,197,712.95/x - Step 3: Cross multiply
2,115,507.66x = 2,919,370.61 × 1,197,712.95 - Step 4: Simplify right side
2,115,507.66x = 3,496,567,977,493.04 - Step 5: Solve for x
x = 3,496,567,977,493.04/2,115,507.66 - Step 6: Final answer
x = 1,652,826.90
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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.