Finding the Fourth Proportional to 549,430.48, 758,205.12 and 307,711.09
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Solution
The fourth proportional to 549,430.48, 758,205.12 and 307,711.09 is: 424,636.30
Step by Step Solution
- Step 1: Write the proportion equation
549,430.48 : 758,205.12 = 307,711.09 : x - Step 2: Convert to fraction form
549,430.48/758,205.12 = 307,711.09/x - Step 3: Cross multiply
549,430.48x = 758,205.12 × 307,711.09 - Step 4: Simplify right side
549,430.48x = 233,308,123,918.78 - Step 5: Solve for x
x = 233,308,123,918.78/549,430.48 - Step 6: Final answer
x = 424,636.30
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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.