Finding the Fourth Proportional to 720,107.62, 1,079,911.29 and 400,746.84
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Solution
The fourth proportional to 720,107.62, 1,079,911.29 and 400,746.84 is: 600,981.06
Step by Step Solution
- Step 1: Write the proportion equation
720,107.62 : 1,079,911.29 = 400,746.84 : x - Step 2: Convert to fraction form
720,107.62/1,079,911.29 = 400,746.84/x - Step 3: Cross multiply
720,107.62x = 1,079,911.29 × 400,746.84 - Step 4: Simplify right side
720,107.62x = 432,771,038,221.26 - Step 5: Solve for x
x = 432,771,038,221.26/720,107.62 - Step 6: Final answer
x = 600,981.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.