Finding the Fourth Proportional to 767,785.36, 1,151,678.10 and 393,569.68
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Solution
The fourth proportional to 767,785.36, 1,151,678.10 and 393,569.68 is: 590,354.55
Step by Step Solution
- Step 1: Write the proportion equation
767,785.36 : 1,151,678.10 = 393,569.68 : x - Step 2: Convert to fraction form
767,785.36/1,151,678.10 = 393,569.68/x - Step 3: Cross multiply
767,785.36x = 1,151,678.10 × 393,569.68 - Step 4: Simplify right side
767,785.36x = 453,265,581,280.01 - Step 5: Solve for x
x = 453,265,581,280.01/767,785.36 - Step 6: Final answer
x = 590,354.55
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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.