Finding the Fourth Proportional to 1,803,153.66, 2,488,408.36 and 987,434.75
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Solution
The fourth proportional to 1,803,153.66, 2,488,408.36 and 987,434.75 is: 1,362,690.80
Step by Step Solution
- Step 1: Write the proportion equation
1,803,153.66 : 2,488,408.36 = 987,434.75 : x - Step 2: Convert to fraction form
1,803,153.66/2,488,408.36 = 987,434.75/x - Step 3: Cross multiply
1,803,153.66x = 2,488,408.36 × 987,434.75 - Step 4: Simplify right side
1,803,153.66x = 2,457,140,890,606.94 - Step 5: Solve for x
x = 2,457,140,890,606.94/1,803,153.66 - Step 6: Final answer
x = 1,362,690.80
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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.