Finding the Fourth Proportional to 2,109,637.39, 2,911,239.60 and 1,238,458.09
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Solution
The fourth proportional to 2,109,637.39, 2,911,239.60 and 1,238,458.09 is: 1,709,036.94
Step by Step Solution
- Step 1: Write the proportion equation
2,109,637.39 : 2,911,239.60 = 1,238,458.09 : x - Step 2: Convert to fraction form
2,109,637.39/2,911,239.60 = 1,238,458.09/x - Step 3: Cross multiply
2,109,637.39x = 2,911,239.60 × 1,238,458.09 - Step 4: Simplify right side
2,109,637.39x = 3,605,448,234,548.36 - Step 5: Solve for x
x = 3,605,448,234,548.36/2,109,637.39 - Step 6: Final answer
x = 1,709,036.94
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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.