Finding the Fourth Proportional to 659,211.81, 909,730.23 and 372,774.75
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Solution
The fourth proportional to 659,211.81, 909,730.23 and 372,774.75 is: 514,439.30
Step by Step Solution
- Step 1: Write the proportion equation
659,211.81 : 909,730.23 = 372,774.75 : x - Step 2: Convert to fraction form
659,211.81/909,730.23 = 372,774.75/x - Step 3: Cross multiply
659,211.81x = 909,730.23 × 372,774.75 - Step 4: Simplify right side
659,211.81x = 339,124,459,055.69 - Step 5: Solve for x
x = 339,124,459,055.69/659,211.81 - Step 6: Final answer
x = 514,439.30
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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.