Finding the Fourth Proportional to 1,630,813.48, 2,250,553.10 and 905,729.12
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Solution
The fourth proportional to 1,630,813.48, 2,250,553.10 and 905,729.12 is: 1,249,923.12
Step by Step Solution
- Step 1: Write the proportion equation
1,630,813.48 : 2,250,553.10 = 905,729.12 : x - Step 2: Convert to fraction form
1,630,813.48/2,250,553.10 = 905,729.12/x - Step 3: Cross multiply
1,630,813.48x = 2,250,553.10 × 905,729.12 - Step 4: Simplify right side
1,630,813.48x = 2,038,391,471,434.44 - Step 5: Solve for x
x = 2,038,391,471,434.44/1,630,813.48 - Step 6: Final answer
x = 1,249,923.12
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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.