Finding the Fourth Proportional to 399,224.09, 549,530.87 and 348,146.71
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Solution
The fourth proportional to 399,224.09, 549,530.87 and 348,146.71 is: 479,222.99
Step by Step Solution
- Step 1: Write the proportion equation
399,224.09 : 549,530.87 = 348,146.71 : x - Step 2: Convert to fraction form
399,224.09/549,530.87 = 348,146.71/x - Step 3: Cross multiply
399,224.09x = 549,530.87 × 348,146.71 - Step 4: Simplify right side
399,224.09x = 191,317,361,319.38 - Step 5: Solve for x
x = 191,317,361,319.38/399,224.09 - Step 6: Final answer
x = 479,222.99
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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.