Finding the Fourth Proportional to 1,438,987.68, 1,985,970.96 and 1,196,843.04
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Solution
The fourth proportional to 1,438,987.68, 1,985,970.96 and 1,196,843.04 is: 1,651,783.09
Step by Step Solution
- Step 1: Write the proportion equation
1,438,987.68 : 1,985,970.96 = 1,196,843.04 : x - Step 2: Convert to fraction form
1,438,987.68/1,985,970.96 = 1,196,843.04/x - Step 3: Cross multiply
1,438,987.68x = 1,985,970.96 × 1,196,843.04 - Step 4: Simplify right side
1,438,987.68x = 2,376,895,521,118.12 - Step 5: Solve for x
x = 2,376,895,521,118.12/1,438,987.68 - Step 6: Final answer
x = 1,651,783.09
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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.