Finding the Fourth Proportional to 549,342.32, 758,140.09 and 307,620.50
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Solution
The fourth proportional to 549,342.32, 758,140.09 and 307,620.50 is: 424,542.99
Step by Step Solution
- Step 1: Write the proportion equation
549,342.32 : 758,140.09 = 307,620.50 : x - Step 2: Convert to fraction form
549,342.32/758,140.09 = 307,620.50/x - Step 3: Cross multiply
549,342.32x = 758,140.09 × 307,620.50 - Step 4: Simplify right side
549,342.32x = 233,219,428,996.09 - Step 5: Solve for x
x = 233,219,428,996.09/549,342.32 - Step 6: Final answer
x = 424,542.99
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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.