Finding the Fourth Proportional to 817,851.48, 1,128,555.88 and 603,107.16
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Solution
The fourth proportional to 817,851.48, 1,128,555.88 and 603,107.16 is: 832,229.50
Step by Step Solution
- Step 1: Write the proportion equation
817,851.48 : 1,128,555.88 = 603,107.16 : x - Step 2: Convert to fraction form
817,851.48/1,128,555.88 = 603,107.16/x - Step 3: Cross multiply
817,851.48x = 1,128,555.88 × 603,107.16 - Step 4: Simplify right side
817,851.48x = 680,640,131,688.10 - Step 5: Solve for x
x = 680,640,131,688.10/817,851.48 - Step 6: Final answer
x = 832,229.50
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1.5x scale
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.