Finding the Fourth Proportional to 1,731,811.78, 2,388,352.80 and 1,087,292.08
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Solution
The fourth proportional to 1,731,811.78, 2,388,352.80 and 1,087,292.08 is: 1,499,491.52
Step by Step Solution
- Step 1: Write the proportion equation
1,731,811.78 : 2,388,352.80 = 1,087,292.08 : x - Step 2: Convert to fraction form
1,731,811.78/2,388,352.80 = 1,087,292.08/x - Step 3: Cross multiply
1,731,811.78x = 2,388,352.80 × 1,087,292.08 - Step 4: Simplify right side
1,731,811.78x = 2,596,837,083,685.82 - Step 5: Solve for x
x = 2,596,837,083,685.82/1,731,811.78 - Step 6: Final answer
x = 1,499,491.52
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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.