Finding the Fourth Proportional to 2,378,804.16, 3,282,752.99 and 1,291,075.76
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Solution
The fourth proportional to 2,378,804.16, 3,282,752.99 and 1,291,075.76 is: 1,781,686.31
Step by Step Solution
- Step 1: Write the proportion equation
2,378,804.16 : 3,282,752.99 = 1,291,075.76 : x - Step 2: Convert to fraction form
2,378,804.16/3,282,752.99 = 1,291,075.76/x - Step 3: Cross multiply
2,378,804.16x = 3,282,752.99 × 1,291,075.76 - Step 4: Simplify right side
2,378,804.16x = 4,238,282,811,456.52 - Step 5: Solve for x
x = 4,238,282,811,456.52/2,378,804.16 - Step 6: Final answer
x = 1,781,686.31
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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.