Finding the Fourth Proportional to 692,109.09, 955,133.44 and 401,698.87
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Solution
The fourth proportional to 692,109.09, 955,133.44 and 401,698.87 is: 554,357.72
Step by Step Solution
- Step 1: Write the proportion equation
692,109.09 : 955,133.44 = 401,698.87 : x - Step 2: Convert to fraction form
692,109.09/955,133.44 = 401,698.87/x - Step 3: Cross multiply
692,109.09x = 955,133.44 × 401,698.87 - Step 4: Simplify right side
692,109.09x = 383,676,020,155.13 - Step 5: Solve for x
x = 383,676,020,155.13/692,109.09 - Step 6: Final answer
x = 554,357.72
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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.