Finding the Fourth Proportional to 554,425.36, 765,105.95 and 312,707.18
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Solution
The fourth proportional to 554,425.36, 765,105.95 and 312,707.18 is: 431,535.32
Step by Step Solution
- Step 1: Write the proportion equation
554,425.36 : 765,105.95 = 312,707.18 : x - Step 2: Convert to fraction form
554,425.36/765,105.95 = 312,707.18/x - Step 3: Cross multiply
554,425.36x = 765,105.95 × 312,707.18 - Step 4: Simplify right side
554,425.36x = 239,254,126,720.25 - Step 5: Solve for x
x = 239,254,126,720.25/554,425.36 - Step 6: Final answer
x = 431,535.32
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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.