Finding the Fourth Proportional to 1,858,509.20, 2,565,643.92 and 1,246,438.08
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Solution
The fourth proportional to 1,858,509.20, 2,565,643.92 and 1,246,438.08 is: 1,720,688.97
Step by Step Solution
- Step 1: Write the proportion equation
1,858,509.20 : 2,565,643.92 = 1,246,438.08 : x - Step 2: Convert to fraction form
1,858,509.20/2,565,643.92 = 1,246,438.08/x - Step 3: Cross multiply
1,858,509.20x = 2,565,643.92 × 1,246,438.08 - Step 4: Simplify right side
1,858,509.20x = 3,197,916,281,608.47 - Step 5: Solve for x
x = 3,197,916,281,608.47/1,858,509.20 - Step 6: Final answer
x = 1,720,688.97
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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.