Finding the Fourth Proportional to 1,142,278.98, 1,576,326.09 and 626,028.90
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Solution
The fourth proportional to 1,142,278.98, 1,576,326.09 and 626,028.90 is: 863,909.52
Step by Step Solution
- Step 1: Write the proportion equation
1,142,278.98 : 1,576,326.09 = 626,028.90 : x - Step 2: Convert to fraction form
1,142,278.98/1,576,326.09 = 626,028.90/x - Step 3: Cross multiply
1,142,278.98x = 1,576,326.09 × 626,028.90 - Step 4: Simplify right side
1,142,278.98x = 986,825,688,164.00 - Step 5: Solve for x
x = 986,825,688,164.00/1,142,278.98 - Step 6: Final answer
x = 863,909.52
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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.