Finding the Fourth Proportional to 2,257,833.24, 3,115,811.50 and 1,225,340.75
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Solution
The fourth proportional to 2,257,833.24, 3,115,811.50 and 1,225,340.75 is: 1,690,971.12
Step by Step Solution
- Step 1: Write the proportion equation
2,257,833.24 : 3,115,811.50 = 1,225,340.75 : x - Step 2: Convert to fraction form
2,257,833.24/3,115,811.50 = 1,225,340.75/x - Step 3: Cross multiply
2,257,833.24x = 3,115,811.50 × 1,225,340.75 - Step 4: Simplify right side
2,257,833.24x = 3,817,930,804,994.80 - Step 5: Solve for x
x = 3,817,930,804,994.80/2,257,833.24 - Step 6: Final answer
x = 1,690,971.12
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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.