Finding the Fourth Proportional to 1,687,534.80, 2,328,804.20 and 913,165.65
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Solution
The fourth proportional to 1,687,534.80, 2,328,804.20 and 913,165.65 is: 1,260,171.94
Step by Step Solution
- Step 1: Write the proportion equation
1,687,534.80 : 2,328,804.20 = 913,165.65 : x - Step 2: Convert to fraction form
1,687,534.80/2,328,804.20 = 913,165.65/x - Step 3: Cross multiply
1,687,534.80x = 2,328,804.20 × 913,165.65 - Step 4: Simplify right side
1,687,534.80x = 2,126,584,003,298.64 - Step 5: Solve for x
x = 2,126,584,003,298.64/1,687,534.80 - Step 6: Final answer
x = 1,260,171.94
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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.