Finding the Fourth Proportional to 549,403.23, 758,140.36 and 307,630.38
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Solution
The fourth proportional to 549,403.23, 758,140.36 and 307,630.38 is: 424,509.71
Step by Step Solution
- Step 1: Write the proportion equation
549,403.23 : 758,140.36 = 307,630.38 : x - Step 2: Convert to fraction form
549,403.23/758,140.36 = 307,630.38/x - Step 3: Cross multiply
549,403.23x = 758,140.36 × 307,630.38 - Step 4: Simplify right side
549,403.23x = 233,227,007,040.14 - Step 5: Solve for x
x = 233,227,007,040.14/549,403.23 - Step 6: Final answer
x = 424,509.71
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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.