Finding the Fourth Proportional to 1,276,072.55, 1,914,992.87 and 507,491.49
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Solution
The fourth proportional to 1,276,072.55, 1,914,992.87 and 507,491.49 is: 761,588.82
Step by Step Solution
- Step 1: Write the proportion equation
1,276,072.55 : 1,914,992.87 = 507,491.49 : x - Step 2: Convert to fraction form
1,276,072.55/1,914,992.87 = 507,491.49/x - Step 3: Cross multiply
1,276,072.55x = 1,914,992.87 × 507,491.49 - Step 4: Simplify right side
1,276,072.55x = 971,842,592,434.08 - Step 5: Solve for x
x = 971,842,592,434.08/1,276,072.55 - Step 6: Final answer
x = 761,588.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.