Finding the Fourth Proportional to 559,779.21, 772,495.33 and 305,130.39
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Solution
The fourth proportional to 559,779.21, 772,495.33 and 305,130.39 is: 421,079.95
Step by Step Solution
- Step 1: Write the proportion equation
559,779.21 : 772,495.33 = 305,130.39 : x - Step 2: Convert to fraction form
559,779.21/772,495.33 = 305,130.39/x - Step 3: Cross multiply
559,779.21x = 772,495.33 × 305,130.39 - Step 4: Simplify right side
559,779.21x = 235,711,801,316.08 - Step 5: Solve for x
x = 235,711,801,316.08/559,779.21 - Step 6: Final answer
x = 421,079.95
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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.