Finding the Fourth Proportional to 2,105,305.99, 2,905,154.63 and 1,187,240.65
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Solution
The fourth proportional to 2,105,305.99, 2,905,154.63 and 1,187,240.65 is: 1,638,297.56
Step by Step Solution
- Step 1: Write the proportion equation
2,105,305.99 : 2,905,154.63 = 1,187,240.65 : x - Step 2: Convert to fraction form
2,105,305.99/2,905,154.63 = 1,187,240.65/x - Step 3: Cross multiply
2,105,305.99x = 2,905,154.63 × 1,187,240.65 - Step 4: Simplify right side
2,105,305.99x = 3,449,117,671,271.71 - Step 5: Solve for x
x = 3,449,117,671,271.71/2,105,305.99 - Step 6: Final answer
x = 1,638,297.56
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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.