Finding the Fourth Proportional to 1,246,159.80, 1,869,239.70 and 767,862.90
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Solution
The fourth proportional to 1,246,159.80, 1,869,239.70 and 767,862.90 is: 1,151,794.35
Step by Step Solution
- Step 1: Write the proportion equation
1,246,159.80 : 1,869,239.70 = 767,862.90 : x - Step 2: Convert to fraction form
1,246,159.80/1,869,239.70 = 767,862.90/x - Step 3: Cross multiply
1,246,159.80x = 1,869,239.70 × 767,862.90 - Step 4: Simplify right side
1,246,159.80x = 1,435,319,816,837.13 - Step 5: Solve for x
x = 1,435,319,816,837.13/1,246,159.80 - Step 6: Final answer
x = 1,151,794.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.