Finding the Fourth Proportional to 549,235.76, 757,878.84 and 307,499.36
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Solution
The fourth proportional to 549,235.76, 757,878.84 and 307,499.36 is: 424,311.88
Step by Step Solution
- Step 1: Write the proportion equation
549,235.76 : 757,878.84 = 307,499.36 : x - Step 2: Convert to fraction form
549,235.76/757,878.84 = 307,499.36/x - Step 3: Cross multiply
549,235.76x = 757,878.84 × 307,499.36 - Step 4: Simplify right side
549,235.76x = 233,047,258,257.54 - Step 5: Solve for x
x = 233,047,258,257.54/549,235.76 - Step 6: Final answer
x = 424,311.88
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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.