Finding the Fourth Proportional to 1,642,807.04, 2,267,007.36 and 917,643.20
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Solution
The fourth proportional to 1,642,807.04, 2,267,007.36 and 917,643.20 is: 1,266,310.55
Step by Step Solution
- Step 1: Write the proportion equation
1,642,807.04 : 2,267,007.36 = 917,643.20 : x - Step 2: Convert to fraction form
1,642,807.04/2,267,007.36 = 917,643.20/x - Step 3: Cross multiply
1,642,807.04x = 2,267,007.36 × 917,643.20 - Step 4: Simplify right side
1,642,807.04x = 2,080,303,888,253.95 - Step 5: Solve for x
x = 2,080,303,888,253.95/1,642,807.04 - Step 6: Final answer
x = 1,266,310.55
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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.