Finding the Fourth Proportional to 1,585,541.08, 2,187,131.64 and 1,011,934.72
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Solution
The fourth proportional to 1,585,541.08, 2,187,131.64 and 1,011,934.72 is: 1,395,885.90
Step by Step Solution
- Step 1: Write the proportion equation
1,585,541.08 : 2,187,131.64 = 1,011,934.72 : x - Step 2: Convert to fraction form
1,585,541.08/2,187,131.64 = 1,011,934.72/x - Step 3: Cross multiply
1,585,541.08x = 2,187,131.64 × 1,011,934.72 - Step 4: Simplify right side
1,585,541.08x = 2,213,234,443,726.54 - Step 5: Solve for x
x = 2,213,234,443,726.54/1,585,541.08 - Step 6: Final answer
x = 1,395,885.90
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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.