Finding the Fourth Proportional to 1,393,009.74, 1,921,538.99 and 875,945.30
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Solution
The fourth proportional to 1,393,009.74, 1,921,538.99 and 875,945.30 is: 1,208,292.36
Step by Step Solution
- Step 1: Write the proportion equation
1,393,009.74 : 1,921,538.99 = 875,945.30 : x - Step 2: Convert to fraction form
1,393,009.74/1,921,538.99 = 875,945.30/x - Step 3: Cross multiply
1,393,009.74x = 1,921,538.99 × 875,945.30 - Step 4: Simplify right side
1,393,009.74x = 1,683,163,033,069.83 - Step 5: Solve for x
x = 1,683,163,033,069.83/1,393,009.74 - Step 6: Final answer
x = 1,208,292.36
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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.