Finding the Fourth Proportional to 1,249,363.92, 1,723,418.64 and 790,337.28
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Solution
The fourth proportional to 1,249,363.92, 1,723,418.64 and 790,337.28 is: 1,090,220.37
Step by Step Solution
- Step 1: Write the proportion equation
1,249,363.92 : 1,723,418.64 = 790,337.28 : x - Step 2: Convert to fraction form
1,249,363.92/1,723,418.64 = 790,337.28/x - Step 3: Cross multiply
1,249,363.92x = 1,723,418.64 × 790,337.28 - Step 4: Simplify right side
1,249,363.92x = 1,362,082,000,238.90 - Step 5: Solve for x
x = 1,362,082,000,238.90/1,249,363.92 - Step 6: Final answer
x = 1,090,220.37
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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.