Finding the Fourth Proportional to 772,963.40, 1,159,646.70 and 299,664.20
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Solution
The fourth proportional to 772,963.40, 1,159,646.70 and 299,664.20 is: 449,574.46
Step by Step Solution
- Step 1: Write the proportion equation
772,963.40 : 1,159,646.70 = 299,664.20 : x - Step 2: Convert to fraction form
772,963.40/1,159,646.70 = 299,664.20/x - Step 3: Cross multiply
772,963.40x = 1,159,646.70 × 299,664.20 - Step 4: Simplify right side
772,963.40x = 347,504,600,638.14 - Step 5: Solve for x
x = 347,504,600,638.14/772,963.40 - Step 6: Final answer
x = 449,574.46
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.