Finding the Fourth Proportional to 688,693.75, 950,220.87 and 402,049.12
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Solution
The fourth proportional to 688,693.75, 950,220.87 and 402,049.12 is: 554,724.74
Step by Step Solution
- Step 1: Write the proportion equation
688,693.75 : 950,220.87 = 402,049.12 : x - Step 2: Convert to fraction form
688,693.75/950,220.87 = 402,049.12/x - Step 3: Cross multiply
688,693.75x = 950,220.87 × 402,049.12 - Step 4: Simplify right side
688,693.75x = 382,035,464,589.13 - Step 5: Solve for x
x = 382,035,464,589.13/688,693.75 - Step 6: Final answer
x = 554,724.74
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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.