Finding the Fourth Proportional to 831,700.84, 1,147,746.36 and 449,726.71
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Solution
The fourth proportional to 831,700.84, 1,147,746.36 and 449,726.71 is: 620,622.43
Step by Step Solution
- Step 1: Write the proportion equation
831,700.84 : 1,147,746.36 = 449,726.71 : x - Step 2: Convert to fraction form
831,700.84/1,147,746.36 = 449,726.71/x - Step 3: Cross multiply
831,700.84x = 1,147,746.36 × 449,726.71 - Step 4: Simplify right side
831,700.84x = 516,172,194,397.28 - Step 5: Solve for x
x = 516,172,194,397.28/831,700.84 - Step 6: Final answer
x = 620,622.43
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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.