Finding the Fourth Proportional to 819,493.65, 1,130,764.19 and 456,838.02
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Solution
The fourth proportional to 819,493.65, 1,130,764.19 and 456,838.02 is: 630,360.07
Step by Step Solution
- Step 1: Write the proportion equation
819,493.65 : 1,130,764.19 = 456,838.02 : x - Step 2: Convert to fraction form
819,493.65/1,130,764.19 = 456,838.02/x - Step 3: Cross multiply
819,493.65x = 1,130,764.19 × 456,838.02 - Step 4: Simplify right side
819,493.65x = 516,576,071,362.31 - Step 5: Solve for x
x = 516,576,071,362.31/819,493.65 - Step 6: Final answer
x = 630,360.07
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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.