Finding the Fourth Proportional to 1,724,420.16, 2,378,875.68 and 1,339,814.88
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Solution
The fourth proportional to 1,724,420.16, 2,378,875.68 and 1,339,814.88 is: 1,848,304.21
Step by Step Solution
- Step 1: Write the proportion equation
1,724,420.16 : 2,378,875.68 = 1,339,814.88 : x - Step 2: Convert to fraction form
1,724,420.16/2,378,875.68 = 1,339,814.88/x - Step 3: Cross multiply
1,724,420.16x = 2,378,875.68 × 1,339,814.88 - Step 4: Simplify right side
1,724,420.16x = 3,187,253,033,734.12 - Step 5: Solve for x
x = 3,187,253,033,734.12/1,724,420.16 - Step 6: Final answer
x = 1,848,304.21
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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.