Finding the Fourth Proportional to 911,707.95, 1,258,232.74 and 503,889.46
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Solution
The fourth proportional to 911,707.95, 1,258,232.74 and 503,889.46 is: 695,409.32
Step by Step Solution
- Step 1: Write the proportion equation
911,707.95 : 1,258,232.74 = 503,889.46 : x - Step 2: Convert to fraction form
911,707.95/1,258,232.74 = 503,889.46/x - Step 3: Cross multiply
911,707.95x = 1,258,232.74 × 503,889.46 - Step 4: Simplify right side
911,707.95x = 634,010,211,507.62 - Step 5: Solve for x
x = 634,010,211,507.62/911,707.95 - Step 6: Final answer
x = 695,409.32
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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.