Finding the Fourth Proportional to 1,403,089.80, 1,936,269.27 and 782,921.13
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Solution
The fourth proportional to 1,403,089.80, 1,936,269.27 and 782,921.13 is: 1,080,434.14
Step by Step Solution
- Step 1: Write the proportion equation
1,403,089.80 : 1,936,269.27 = 782,921.13 : x - Step 2: Convert to fraction form
1,403,089.80/1,936,269.27 = 782,921.13/x - Step 3: Cross multiply
1,403,089.80x = 1,936,269.27 × 782,921.13 - Step 4: Simplify right side
1,403,089.80x = 1,515,946,124,852.68 - Step 5: Solve for x
x = 1,515,946,124,852.68/1,403,089.80 - Step 6: Final answer
x = 1,080,434.14
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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.