Finding the Fourth Proportional to 2,378,955.49, 3,282,870.65 and 1,291,203.70
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Solution
The fourth proportional to 2,378,955.49, 3,282,870.65 and 1,291,203.70 is: 1,781,813.38
Step by Step Solution
- Step 1: Write the proportion equation
2,378,955.49 : 3,282,870.65 = 1,291,203.70 : x - Step 2: Convert to fraction form
2,378,955.49/3,282,870.65 = 1,291,203.70/x - Step 3: Cross multiply
2,378,955.49x = 3,282,870.65 × 1,291,203.70 - Step 4: Simplify right side
2,378,955.49x = 4,238,854,715,238.21 - Step 5: Solve for x
x = 4,238,854,715,238.21/2,378,955.49 - Step 6: Final answer
x = 1,781,813.38
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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.