Finding the Fourth Proportional to 1,800,970.81, 2,485,398.98 and 985,155.84
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Solution
The fourth proportional to 1,800,970.81, 2,485,398.98 and 985,155.84 is: 1,359,547.48
Step by Step Solution
- Step 1: Write the proportion equation
1,800,970.81 : 2,485,398.98 = 985,155.84 : x - Step 2: Convert to fraction form
1,800,970.81/2,485,398.98 = 985,155.84/x - Step 3: Cross multiply
1,800,970.81x = 2,485,398.98 × 985,155.84 - Step 4: Simplify right side
1,800,970.81x = 2,448,505,322,339.93 - Step 5: Solve for x
x = 2,448,505,322,339.93/1,800,970.81 - Step 6: Final answer
x = 1,359,547.48
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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.