Finding the Fourth Proportional to 1,369,726.74, 1,890,983.08 and 826,000.28
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Solution
The fourth proportional to 1,369,726.74, 1,890,983.08 and 826,000.28 is: 1,140,338.80
Step by Step Solution
- Step 1: Write the proportion equation
1,369,726.74 : 1,890,983.08 = 826,000.28 : x - Step 2: Convert to fraction form
1,369,726.74/1,890,983.08 = 826,000.28/x - Step 3: Cross multiply
1,369,726.74x = 1,890,983.08 × 826,000.28 - Step 4: Simplify right side
1,369,726.74x = 1,561,952,553,555.26 - Step 5: Solve for x
x = 1,561,952,553,555.26/1,369,726.74 - Step 6: Final answer
x = 1,140,338.80
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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.