Finding the Fourth Proportional to 2,130,408.04, 2,939,947.32 and 1,163,538.76
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Solution
The fourth proportional to 2,130,408.04, 2,939,947.32 and 1,163,538.76 is: 1,605,674.87
Step by Step Solution
- Step 1: Write the proportion equation
2,130,408.04 : 2,939,947.32 = 1,163,538.76 : x - Step 2: Convert to fraction form
2,130,408.04/2,939,947.32 = 1,163,538.76/x - Step 3: Cross multiply
2,130,408.04x = 2,939,947.32 × 1,163,538.76 - Step 4: Simplify right side
2,130,408.04x = 3,420,742,659,178.12 - Step 5: Solve for x
x = 3,420,742,659,178.12/2,130,408.04 - Step 6: Final answer
x = 1,605,674.87
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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.