Finding the Fourth Proportional to 819,129.86, 1,130,404.44 and 456,576.70
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Solution
The fourth proportional to 819,129.86, 1,130,404.44 and 456,576.70 is: 630,078.76
Step by Step Solution
- Step 1: Write the proportion equation
819,129.86 : 1,130,404.44 = 456,576.70 : x - Step 2: Convert to fraction form
819,129.86/1,130,404.44 = 456,576.70/x - Step 3: Cross multiply
819,129.86x = 1,130,404.44 × 456,576.70 - Step 4: Simplify right side
819,129.86x = 516,116,326,054.54 - Step 5: Solve for x
x = 516,116,326,054.54/819,129.86 - Step 6: Final answer
x = 630,078.76
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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.