Finding the Fourth Proportional to 1,340,830.80, 2,011,343.40 and 807,202.80
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Solution
The fourth proportional to 1,340,830.80, 2,011,343.40 and 807,202.80 is: 1,210,862.72
Step by Step Solution
- Step 1: Write the proportion equation
1,340,830.80 : 2,011,343.40 = 807,202.80 : x - Step 2: Convert to fraction form
1,340,830.80/2,011,343.40 = 807,202.80/x - Step 3: Cross multiply
1,340,830.80x = 2,011,343.40 × 807,202.80 - Step 4: Simplify right side
1,340,830.80x = 1,623,562,024,241.52 - Step 5: Solve for x
x = 1,623,562,024,241.52/1,340,830.80 - Step 6: Final answer
x = 1,210,862.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.