Finding the Fourth Proportional to 1,252,860.18, 1,728,959.73 and 679,905.30
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Solution
The fourth proportional to 1,252,860.18, 1,728,959.73 and 679,905.30 is: 938,276.20
Step by Step Solution
- Step 1: Write the proportion equation
1,252,860.18 : 1,728,959.73 = 679,905.30 : x - Step 2: Convert to fraction form
1,252,860.18/1,728,959.73 = 679,905.30/x - Step 3: Cross multiply
1,252,860.18x = 1,728,959.73 × 679,905.30 - Step 4: Simplify right side
1,252,860.18x = 1,175,528,883,913.57 - Step 5: Solve for x
x = 1,175,528,883,913.57/1,252,860.18 - Step 6: Final answer
x = 938,276.20
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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.