Finding the Fourth Proportional to 1,422,833.13, 1,963,468.11 and 778,239.48
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Solution
The fourth proportional to 1,422,833.13, 1,963,468.11 and 778,239.48 is: 1,073,947.72
Step by Step Solution
- Step 1: Write the proportion equation
1,422,833.13 : 1,963,468.11 = 778,239.48 : x - Step 2: Convert to fraction form
1,422,833.13/1,963,468.11 = 778,239.48/x - Step 3: Cross multiply
1,422,833.13x = 1,963,468.11 × 778,239.48 - Step 4: Simplify right side
1,422,833.13x = 1,528,048,400,922.98 - Step 5: Solve for x
x = 1,528,048,400,922.98/1,422,833.13 - Step 6: Final answer
x = 1,073,947.72
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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.