Finding the Fourth Proportional to 1,570,782.20, 2,357,922.90 and 862,194.20
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Solution
The fourth proportional to 1,570,782.20, 2,357,922.90 and 862,194.20 is: 1,294,251.65
Step by Step Solution
- Step 1: Write the proportion equation
1,570,782.20 : 2,357,922.90 = 862,194.20 : x - Step 2: Convert to fraction form
1,570,782.20/2,357,922.90 = 862,194.20/x - Step 3: Cross multiply
1,570,782.20x = 2,357,922.90 × 862,194.20 - Step 4: Simplify right side
1,570,782.20x = 2,032,987,448,427.18 - Step 5: Solve for x
x = 2,032,987,448,427.18/1,570,782.20 - Step 6: Final answer
x = 1,294,251.65
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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.