Finding the Fourth Proportional to 968,790.10, 1,337,115.36 and 641,526.28
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Solution
The fourth proportional to 968,790.10, 1,337,115.36 and 641,526.28 is: 885,428.79
Step by Step Solution
- Step 1: Write the proportion equation
968,790.10 : 1,337,115.36 = 641,526.28 : x - Step 2: Convert to fraction form
968,790.10/1,337,115.36 = 641,526.28/x - Step 3: Cross multiply
968,790.10x = 1,337,115.36 × 641,526.28 - Step 4: Simplify right side
968,790.10x = 857,794,642,831.66 - Step 5: Solve for x
x = 857,794,642,831.66/968,790.10 - Step 6: Final answer
x = 885,428.79
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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.