Finding the Fourth Proportional to 2,378,991.50, 3,283,011.58 and 1,291,263.31
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Solution
The fourth proportional to 2,378,991.50, 3,283,011.58 and 1,291,263.31 is: 1,781,945.16
Step by Step Solution
- Step 1: Write the proportion equation
2,378,991.50 : 3,283,011.58 = 1,291,263.31 : x - Step 2: Convert to fraction form
2,378,991.50/3,283,011.58 = 1,291,263.31/x - Step 3: Cross multiply
2,378,991.50x = 3,283,011.58 × 1,291,263.31 - Step 4: Simplify right side
2,378,991.50x = 4,239,232,401,870.63 - Step 5: Solve for x
x = 4,239,232,401,870.63/2,378,991.50 - Step 6: Final answer
x = 1,781,945.16
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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.