Finding the Fourth Proportional to 819,301.74, 1,130,636.58 and 456,717.79
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Solution
The fourth proportional to 819,301.74, 1,130,636.58 and 456,717.79 is: 630,270.65
Step by Step Solution
- Step 1: Write the proportion equation
819,301.74 : 1,130,636.58 = 456,717.79 : x - Step 2: Convert to fraction form
819,301.74/1,130,636.58 = 456,717.79/x - Step 3: Cross multiply
819,301.74x = 1,130,636.58 × 456,717.79 - Step 4: Simplify right side
819,301.74x = 516,381,839,811.36 - Step 5: Solve for x
x = 516,381,839,811.36/819,301.74 - Step 6: Final answer
x = 630,270.65
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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.