Finding the Fourth Proportional to 1,420,657.93, 1,960,975.16 and 1,130,801.19
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Solution
The fourth proportional to 1,420,657.93, 1,960,975.16 and 1,130,801.19 is: 1,560,877.53
Step by Step Solution
- Step 1: Write the proportion equation
1,420,657.93 : 1,960,975.16 = 1,130,801.19 : x - Step 2: Convert to fraction form
1,420,657.93/1,960,975.16 = 1,130,801.19/x - Step 3: Cross multiply
1,420,657.93x = 1,960,975.16 × 1,130,801.19 - Step 4: Simplify right side
1,420,657.93x = 2,217,473,044,488.44 - Step 5: Solve for x
x = 2,217,473,044,488.44/1,420,657.93 - Step 6: Final answer
x = 1,560,877.53
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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.