Finding the Fourth Proportional to 2,130,409.04, 2,939,948.70 and 1,163,539.76
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Solution
The fourth proportional to 2,130,409.04, 2,939,948.70 and 1,163,539.76 is: 1,605,676.25
Step by Step Solution
- Step 1: Write the proportion equation
2,130,409.04 : 2,939,948.70 = 1,163,539.76 : x - Step 2: Convert to fraction form
2,130,409.04/2,939,948.70 = 1,163,539.76/x - Step 3: Cross multiply
2,130,409.04x = 2,939,948.70 × 1,163,539.76 - Step 4: Simplify right side
2,130,409.04x = 3,420,747,204,810.31 - Step 5: Solve for x
x = 3,420,747,204,810.31/2,130,409.04 - Step 6: Final answer
x = 1,605,676.25
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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.